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Internet on TV - Department of Computer and Information Science

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2. 31 3 2 2 Why Did It Not Come Earlier 32 3 3 The Wanted Situation and Its Possible Solutions 32 9 3 1 Digiboards Vision lt lt 445 205 409 2 4 32 A we ley he ec a de a Ee 33 Us ch se a dogs WES OK a age de ree ee 35 pa Q Q SO 8 sb ORE OE HS 36 Ps oe s 36 3 5 2 End Deliveries EROS 36 A 37 3 61 ol Microelectronics 2 4 4 4 24 ee ss redes a 37 32 62 Intel Media Processor CE 3100 38 3 7 Alternative Microcontrollers 38 3 7 1 Description of Alternative Microcontrollers 38 3 7 2 Evaluation of Alternative Microcontrollers 41 sa poa S S af s AE 43 3 7 4 Choice of Microcontroller 45 AAP e a 45 3 8 1 Description of alternative methodologies 45 eH ee a 48 4 1 1 Functional Requirements 49 I A Se 51 42 Product Backlog _ eb heS EEG EH 51 Chapter 5 55 51 Sprint 1 Planning rra ewe a A 55 5 1 1 Sprint Backlogg oes be ee ote ka Roe PE ee 56 xii 5 2 Sprint 1 Results ocurra asado 5 2 1 User Interface 5 22 TV Use Cases 0 02 2022000848 0 2 3 High Level Architecture 5 3 Sprint 1 Evaluation Geek e eA E oe 53 1 Concl sion z s e sca ses 4 2d dee e Sprint 2 Detailed System Design 6 1 Sprint 2 Planning 6 1 1 Sprint Baeklog
3. 2 3 1 User interface 6 tirilane tirilane 3 ARCHITECTURE 3 1 Logical View 32 mortjohn mortjohn jarleerd 3 1 1 Overview 32 mortjohn mortjohn jarleerd boron X MISCELLANEOUS X 1 Backlog boron boron larsmaha SUM 84 57 5 2 SPRINT 1 RESULTS 5 2 Sprint 1 Results The sprint results are the internal documentation of the work this sprint code not included 5 2 1 User Interface The description of the user interface is divided in two parts the TV with remote control and the web portal 5 2 1 1 Remote Control and TV The main interface of the widgets are done with the remote control for directly altering of the widgets on the TV TV Buttons Our solution needs a remote control with one extra button W but uses also some of the normal remote buttons That would be the arrows lt gt A Y and the OK or SELECT button in the middle The number buttons 0 1 2 3 4 5 6 7 8 9 are also used The ON OFF button is used in our description but not in the widget mode L lt Left arrow R Right arrow U A Up arrow D Y Down arrow OK OK SELECT button in the middle W Our special widget button ON OFF The button for turning the TV on and off 0 9 Numeric buttons TV Modes Our solution has two modes in which the buttons have sep arate meaning When you turn on the TV you are in the TV mode Figure B 1 Here the television works as normal The only special thing is the W button which is no
4. Jarle Erdal Steinsland jarleerdQ stud ntnu no Technical manager 2 3 3 Weekly Schedule We worked together three days each week Table 2 3 The rest of the work was done individually At the start of these periods we had group meetings Table 2 3 Weekly Schedule Time Monday Tuesday Wednesday Thursday Friday 08 00 Group meeting 09 00 Group working Supervisor meeting 10 00 Group working Group meeting 11 00 Group working Group working 12 00 Group meeting Group working 13 00 Group working Group working 14 00 Group working Group working 15 00 Group working Seminar 16 00 Seminar 17 00 Seminar 18 00 Seminar 2 4 Templates and Standards This section contains the TEX templates used in this report Standards e g for files and code are also presented here 2 4 1 Templates All templates are written in TpX either as standalone documents ready to be copied and used or as simple text ready to be inserted into another document The templates are included in Appendix CHAPTER 2 PROJECT DIRECTIVE 10 2 4 1 1 Phase Documents The phase documents and appendices are in the report directory and are all named part_ lt something gt and app lt something gt They are all included in the report tex file and compiled into report pdf The names are all short for the actual phase document name 2 4 1 2 Agenda for Meetings We use
5. NTNU Faculty of Information Technology Mathematics and Electrical Engineering Department of Computer and Information Science TDT4290 Customer Driven Project Project report Internet on TV Group 2 Digiboards AS Authors Supervisors Alessandro Boron IDI Ane Min Hofplass Garnaas Reidar Conradi main Lars Martin Riiser Haraldsen Snorre Gylterud ass t Morten Weel Johnsen Digiboards AS Tiril Anette Langfeldt R dland Harald Amundsen Jarle Erdal Steinsland Robin Skoglund 18th November 2009 Given Project Assignment This is the given task assignment taken word for word from appendix D2 in Gulla Conradi Ingvaldsen Hagen and Solskinnsbakk 21 Aug 2009 and is written by Digiboards AS Group 2 disclaims responsibility for the content Title Internet on TV Digiboards is developing a unique Widget concept for easy creation of Digital Signage content Digiboards intention with this student project is to explore the possibil ities to use our Adobe Flash AIR based technology to present live Internet content on Internet enabled TVs The project shall by research identify a user friendly solution for interac tion with the TV viewer If technology and time allows for it a prototype based on AIR Flash shall be developed The prototype shall run on a ST Micro STi 7109 Single Chip Set Top Box IC Additional information Technology verification on ST Micro Single Chip Set Top Box IC Verify that Adobe
6. RS 6 22 Sprint 2 Results _ es 6 2 1 Scenarios 0 0 0 000084 6 2 2 Web Use Cases 008 6 2 3 Sketches A ees oul ee ace ee 6 2 5 Implementation lt lt a al PS ee a sa 6 3 1 Conclusiodl Chapter 7 Sprint 3 Implementation Part I 7 1 Sprint 3 Planning 7 1 1 Sprint Backlog via io ed A 7 2 Sprint 3 Results lt 2 4 2 4 4 as A EXI Sketches x ao amp ee a BA ee She eS 1 2 2 User Interface 2 ee ed Pe ee ae ee Ss 7 2 3 Usability Testing lt 4 aq er e amp Gee 7 2 4 Implementation Te ee ee ee eee ee oy ite dee See esse ee P N Chapter 8 Sprint 4 Implementation Part II 8 1 Sprint 4 Planning 8 1 1 Sprint Baeklog 6 acc o s wed dae x oh 8 2 Sprint 4 Resulfs _ _ A 8 2 1 Patent application 8 2 2 User Interface o 8 2 3 New UseCases css e 8 2 4 Architecture 8 2 5 Usable cover a 8 2 6 Usability Testing 2 x 6h 8 2 7 Implementation 2 001854 404604445 8 3 Sprint 4 Evaluation esas beak we ee Se A Se 119 8 3 1 Conclusion 664244465 4 664 4 4K 120 Chapter 9 123 9 1 Sprint 5 Planning T eee nye 2 he ee Ee we oS eS 123 9 1 1 Sprint Backlog esos rs a RE See ES 123 A 123 9 21 Usability Vestine 14 4 4 2 es e ele 4 we 125 9 22 Imple
7. that did not work thinking a short while PIH go back to TV mode and restart the task 127 9 2 We did also get good feedback during the tests and learned quickly how to get around in the application Table 9 2 First Usability Test SPRINT 5 RESULTS understood the users the times Person What do what was If you Which Other you feel positive could widgets com about about the change were im ments what applica one portant you have tion thing to you seen what would it be Male 20 I never un Nice I never Football The O 25 good derstood overview liked hand results of button was techno the use of manuals course confusing logical O button I would maybe alas for it skills com change the watch too was in pletely system to volved in Where give in so many did it say structions types of I should directly at actions click it to the screen enter a profile Female I was un Easy to get Maybe A calendar 20 25 certain around you have where I good tech how the now come can see all nological sticky to Harald s my plans skills function profile worked Male 50 To be hon I could I would News Low est I see the get a walk weather mediocre did not un weather in through techno derstand Trondheim function logical much at today skills all I felt com pletely lost m
8. Figure 5 8 TV Overview TV Interface set top box View widgets Choose profile AS Choose a sticky Content server User widget Turn off widgets CHAPTER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN 68 Table 5 2 UCTV 1 Use Case UCTV 1 Description Turn on off the Widget Dock Requirements e F1 1 e F3 1 Actors e User Assumptions e Embelirs Internet on TV solution is installed e User has a remote control that is compatible with the system Steps 1 User presses the W button on the remote control 2 Widgets for the default profile appears above the main TV picture 3 User presses the W button again and the widgets disappear from the screen 69 5 2 SPRINT 1 RESULTS Table 5 3 UCTV 2 Use Case UCTV 2 Description Change widget profile Requirements e F2 1 Actors e User Assumptions e Embelir s Internet on TV solution is installed e The user has at least one widget profile in addition to the default profile e User has a remote control that is compatible with the system e The Widget Doc is already turned on Steps 1 User uses the lt and buttons to flip through the different profiles 2 User presses the OK button to choose profile 3 Widgets for the chosen profile appears on the screen Variations 2 1 2 1 la 2 1 1b User uses the number buttons to enter PIN User enters wrong PIN and gets another attempt to enter the
9. Football Easy 15 20 for people the foot know results and tasks Mediocre that watch ball results football Good tech a lot of TV while I results nological watch a skills movie Female OK I I liked I don t Calendar 20 25 guess A how things know and bus Good tech bit confus float A must be schedules nological ing with small sys the O skills the O but tem and button but ton Got easy to I think it after a learn to it will be while use it better on TV Male A bit The stock I wouldn t Stock Thank 40 50 too many market have so market you for mediocre functions widget many wid changes letting me techno for me to Easy to gets But news be a part logical handle turn on I under of your skills I tried to and off stand this project use the can be mouse changed but was individu strictly ally told it was not allowed I can see the use of this but I don t know if it is anything for me CHAPTER 9 SPRINT 5 USABILITY TESTING 130 9 2 2 Implementation This sprint was mostly used to prepare the demo for the usability tests We discovered that the football widget did not always update properly when a change happened and it also sometimes displayed strange behavior where it would just disappear and not appear again unless the user exited widget mode and entered widget mode again We used the start of this sprint to fix th
10. Reidar Conradi 91 89 70 28 Snorre Gylterud 92 64 68 85 Robin Skoglund 90 12 36 67 Harald Amundsen 99 16 10 28 Agenda 1 Approval of agenda 2 Approval of minutes of meeting from last advisory meeting 3 Comments to the minutes from last customer meeting of other meetings 4 Approval of the status report a Summary b Work done in this period i Status of the documents that are being created ii Meetings iii Other activities c Problems what is interfering with the progress or taking resources d Planning of work for the next period i Meetings ii Activities e Other 5 Review approval of attached phase documents 6 Other issues APPENDIX G TEMPLATES G 4 Meeting Agenda Group 2 October 15 2009 Room R01 Date 00 00 2009 Time 00 00 Phone numbers Alessandro Boron 45 01 95 32 Ane Min Hofplass Garnaas 98 07 42 35 Lars Martin Riiser Haraldsen 45 40 57 64 Morten Weel Johnsen 45 03 33 46 Tiril Anette Langfeldt R dland 99 64 52 85 Jarle Erdal Steinsland 93 81 35 63 Robin Skoglund 90 12 36 67 Harald Amundsen 99 16 10 28 Intent Agenda 1 Approval of agenda 2 Approval of minutes of meeting from last advisory meeting 3 Comments to the minutes from last customer meeting of other meetings 4 Approval of the status report a Summary b Work done in this period i Status of the documents that are being created li Meetings iii Other activities c Problems what is interfering with t
11. be displayed for a few seconds whenever there is a change in that widget e g widget with football live feed results If pushing the OK button in normal widget mode you get to choose a sticky widget You can scroll through the widgets by A and Y All widgets not selected will be semi transparent When you have marked the widget you want to make sticky press OK This widget is now sticky Then you are back to the widget overview with the sticky widgets marked with a colored border From here you can choose another widget and press OK or you can choose this widget or other sticky widgets again This time by pressing OK it will be sticky on change These widgets will be marked by a colored border with another color When you are done selecting sticky widgets press the W button and you will go back to normal TV mode but with the sticky widgets still present and the sticky on change widgets popping up when they need to 7 2 3 Usability Testing We will add a usability test to get feedback on the user interface We want a simple usability test with a few test subjects We will demonstrate our solution and show them videos of Intel and Yahoo s solution The goal is to find out which solution is best and how we can use this to improve our end product 95 7 2 SPRINT 3 RESULTS Figure 7 4 Sprint 3 Demo Class PassCodeBox MainWidgetGUI text JTextField frame JFrame label JLabel profiles ArrayList l
12. in the Online Widget Store The placement of the widgets is an other important feature Here you can place the widgets as you want across the television screen This is as of now not a planned feature for the remote control This is thus the only place to make sure they do not cover up some important part of the television screen Web Profiles The system ships with one default profile This is common for the local area and ships with widgets for the local news and weather The point of this is to make it usable out of the box and also for users not comfortable or able to use the web portal Another bonus is that the customers of Digiboards the so called content providers will pay Digiboards to have their dashboard theme pre installed showing their selected widgets and ads On the web portal one can add multiple profiles for use within the board ers of the set top box There might be a roof of five or so because scrolling through limitless profiles to get to your own will be very time demanding and annoying Sometimes it might be allowed to kill this roof in dialog with Digiboards This is for bigger institutions and other places with more than five inhabi tants This is not up to us to decide but if there are more profiles something should be done with the way one chooses one s profile One could for exam ple use short codes by the number buttons instead CHAPTER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN 64 The main point
13. vi Summary Nowadays more and more TVs have the possibility of connecting to the Internet Digiboards AS plans to use this to create widgets on the TV screen Widgets can for example be news feeds weather forecasts and sports results overlaid on the TV Our original task was to make the widget system possible to run on a set top box or television Unfortunately we did not manage to get the microcontrollers we needed This resulted in a big change of our project Our final assignment was thus to design the widget system create a user friendly interface and an overall architecture A prototype of the system should also be implemented and be used as a proof of concept The main focus during the project was thus on design and usability We had a substantial preliminary study where we mainly researched the different microcontrollers the technologies concerning the project and existing widget systems Using the Scrum development method we had five sprints where we im plemented the prototype and designed the system We designed the archi tecture created use cases designed a user interface with the remote control and performed usability tests We ended up with a solution where it was possible to have multiple user profiles and the possibility of making widgets sticky The sticky function is unique and is our main difference from the competitors Having a widget sticky means that it is glued to the screen letting the user view it while watchin
14. 4 Planning This sprint we will finish up as good as we can We will do the necessary changes in what we have already done with respect to the changes required by the customer It should be possible to change profiles when in sticky widget mode and it should be possible to set widgets from different profiles sticky at the same time Therefore we must change the design accordingly We must also finish the architecture and of course the implementation If we get the time we will also prepare for a later usability test 8 1 1 Sprint Backlog The tasks to be performed this sprint are together with the customer chosen from the product backlog Table and copied into the sprint backlog Table 8 1 99 CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 100 Table 8 1 Sprint 4 Backlog Item Description Est Responsible Assigned Effort Mem bers 2 FUNCTIONALITY DESCRIPTION 2 2 User Interface 4 tirilane tirilane 2 2 1 Remote control and TV 4 tirilane tirilane 3 ARCHITECTURE 3 3 Process View 24 mortjohn all 3 4 Physical View 24 mortjohn all 4 IMPLEMENTATION 4 1 Mock Up 120 jarleerd jarleerd boron 4 1 1 Widget window 72 jarleerd jarleerd 4 1 2 Widget content 48 boron boron 5 USABILITY 5 1 Usability Testing 16 larsmaha all 5 1 2 Preparation 16 larsmaha larsmaha tirilane SUM 188 101 8 2 SPRINT 4 RESULTS 8 2 Sprint 4 Results The sprint results
15. 4 planning should have been better e Should have introduced Sprint 5 earlier maybe before we started Sprint 4 8 3 1 Conclusion If we look at the burn down chart Figure we notice that we are 56 hours behind what we planned The solution to complete all the tasks in the product backlog will be to add a fifth sprint Here we will also do the usability tests and finish the implementation The reason why we did not reach the goal for Sprint 4 is simply that we had too much to do After the Sprint 3 review with the customer we got more tasks that needed to be done which lead to a higher estimate for the Sprint 4 121 8 3 SPRINT 4 EVALUATION Figure 8 9 Sprint 4 Burn Down Chart Burndown chart Sprint 4 Burned down Balance Daily i Weekday Day Planned Actual Planned Actual Completed 0 188 188 N A Wed 1 36 24 152 164 24 Thur 2 44 50 108 114 50 Fri 3 36 12 72 102 12 Sat 4 0 0 72 102 0 Sun 5 0 0 72 102 0 Mon 6 36 32 36 70 32 Tue 7 36 30 0 40 30 Planned e Actual CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 122 CHAPTER 9 Sprint 5 Usability Testing This is the documentation of the progress results and acquired knowledge during Sprint 5 of the project This fifth sprint took place between 29th October and 4th November 2009 9 1 Sprint 5 Planning We needed a fifth sprint to finalize the project We will use this sprint to finish the demo the arc
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17. If one started in profile mode one will stay in profile mode just showing the new profile s widgets If one was in sticky widget mode however one will stay in this mode showing the new profile s widgets with stickiness marking 5 Conclusion A visual tour of the widgets The following figures shows roughly how all this is done and how it will look APPENDIX H FUNCTIONALITY DESCRIPTION H 10 When first turning on the TV there will be a normal TV show figure 2 By pressing W one is taken to the default profile figure 3 Now the arrows lt and will change to a different profile When changing to a secured profile one will be asked for a PIN code figure 4 When entered the secured profile will load figure 5 and one can enjoy the profile s widgets By pressing OK one will enter sticky widget mode and but one widget will be faded out figure 6 A and Y changes which widget this is By pressing OK this widget will be made sticky By pressing W again one is back in TV mode with the sticky widget still visible figure 7 In addition one can set multiple widgets sticky at the same time includ ing widgets from different profiles The sticky widgets will not change when the current profile is changed but stays sticky until the TV is turned off or it s stickiness is manually changed The widgets can also be set to sticky on change meaning that they will only be visible when its contents has changed The appearan
18. Intel Media Processor CE 3100 provide the robust processing performance and headroom needed to create a new consumer experience Widget Channel provides a simple and user friendly way to personalize enjoy and share Internet con tent and services on TV by enabling multiple Internet applications to be 2One of the major American public corporation that provides Internet services world wide the latter the world leader in silicon innovation develops technologies products and initiatives to continually advance how people work and live CHAPTER 3 PRELIMINARY STUDY 34 Figure 3 4 Flickr on TV displayed on the TV screen concurrently with video programming The soft ware framework is designed to run on a variety of connected CE devices including advanced DVD players Blu ray players set top boxes and inte grated Digital TVs Widget Channel allows consumers to enjoy rich Internet Application designed for TV while watching their favorite TV programs using a new user friendly interface The idea behind this is not using a web browser for providing the services but use a fifth generation applications platform the Yahoo Widget Engine that will enable TV watchers to interact with and enjoy a rich set of TV Wid get or small Internet applications These are designed to complement and enhance the traditional TV watching experience and bring content informa tion and community features available on the Internet within easy reach of the re
19. Memory The most common computer memory which can be used by programs to perform necessary tasks while the computer is on an integrated circuit memory chip allows information to be stored or accessed in any order and all storage locations are equally accessible die net 149 GLOSSARY RIA Rich Internet Applications Web applications that have most of the characteristics of desktop applications typically delivered by way of standards based web browser plug ins or independently via sandboxes or virtual machines Examples of RIA frameworks include Curl GWT Adobe Flash Adobe Flex AIR Java JavaFX uniPaaS Mozilla s XUL and Microsoft Silverlight RISC Reduced Instruction Set Computer A kind of computer archi tecture that has a relatively small set of computer instructions that it can perform die net SDRAM Synchronous DRAM A form of DRAM which adds a sepa rate clock signal to the control signals SDRAM chips can contain more complex state machines allowing them to support burst access modes that clock out a series of successive bits similar to the nibble mode DRAM die net STB Set Top Box Any electronic device designed to produce output on a conventional television set on top of which it nominally sits and connected to some other communications channels such as telephone ISDN optical fiber or cable The STB usually runs software to allow the user to interact with the programs shown on the television in some way die
20. Nid 104 paxsy O 6 0 6 0 6 0 6 0 V paypajoJd puomssed p je5nu unne Nid T UIN V as13 Nid 23105 s p m ayoidquauna Od T UUN UNEJ Pr UDN 440 NO e Ayo Qs peuu sjye6pim AyoNs uM SI 419 BPM AL euLoN 440 NO Figure 5 7 State Diagram of User Input PJE 39 HpiMy nu uu S I e bpm T JP Bpimy pow 1 BpTM 63 5 2 SPRINT 1 RESULTS 5 2 1 2 Web Portal The magic behind the scenes are done at the web portal http www embelir com This is meant as a bonus for the advanced users It will work fine without but then there will only be the one default profile This subsection is not meant as such a detailed design as was the case with the remote control The web portal is beyond the scope of this project and is only described as an overview of the possibilities This is only available for premium users and is a part of an extra package one can buy The plan it to have this as a scription with a monthly fee of 2 on average according to the business plan in Embelir Sep 2009 Web Widgets The point of the web portal is for the advanced users to customize their widgets In the Online Widget Store you can choose between a number of widgets and even upload your own You can also change the style of the widgets their appearance back ground and color scheme It is also possible to make your own and sell them
21. SPECIFICATION AND BACKLOG 52 received a low priority So even though there are many hours involved they will only be used if we have the time to do it Backlog Description Our backlogs have three levels There are the main parts e g 1 Use Cases the subparts e g 1 1 Remote Control and TV and the actual tasks e g 1 1 1 Overview of the TV The main parts are the overall classification of what the task is while the subparts are a further division Properties like estimated effort sprints and people working with it are all accumulated through the tasks in a sub task and collected within that subtask Similarly the subtasks values are accumulated within that main part The different levels are separated with different numbering 1 2 and 3 level numbering and different fonts 53 4 2 PRODUCT BACKLOG Table 4 3 Product Backlog Item Description Priority Est Effort Sprint 1 USE CASES 40 1 2 1 1 Remote Control and TV High 32 1 1 1 1 Overview of T V High 8 1 1 1 2 Turn on off widgets High 8 1 1 1 3 Change widget profile High 8 1 1 1 4 Choose sticky widget High 8 1 12 Web Portal Medium 8 2 1 2 1 Overview of web portal Medium 8 2 2 FUNCTIONALITY DESCRIPTION 32 1 2 4 2 1 Scenarios Medium 8 2 2 1 1 Use widgets Medium 4 2 2 1 2 Edit profiles Medium 4 2 2 2 User Interface High 14 1 4 2 2 1 Remote control and TV High 8 4 2 2 2 Web p
22. acid3 acidtests org from the Web Standards Project that checks how well a web browser follows cer tain selected elements from web standards especially relating to the Document Object Model and JavaScript Wikipedia ActionScript A scripting language based on ECMAScript Wikipedia Adobe AIR A cross platform runtime environment for building rich Inter net applications using Adobe Flash Adobe Flex HTML or Ajax that run outside of the web browser Wikipedia Adobe Flash A multimedia platform used for adding animation and in teractivity to web pages It is commonly used to create animation integrate videos into web pages and to develop rich Internet applica tions Wikipedia BibTpx A BTEXpackage for bibliographic citations die net Blu ray An optical disc storage medium designed to supersede the standard DVD Wikipedia C A statically typed free form multi paradigm compiled general purpose programming language Wikipedia CISC Complex Instruction Set Computer A kind of computer archi tecture that has a large number of instructions hard coded into the CPU chip die net 145 GLOSSARY 146 COCOA One of Apple Inc s native object oriented application program environments for the Mac OS X operating system Wikipedia Codec An integrated circuit or other electronic device combining the cir cuits needed to convert digital signals to and from analog Pulse Code Modulation form die net Digital signa
23. arrow she arrives at her profile As this is password protected she is queries about her PIN code She enters it with the numeric buttons and her profile is shown She spends the advertisement break reading the news on her Facebook feed As the movie starts she pushes the widget button again to enjoy the film uninterrupted Next advertisement break she again clicks the widget button Her profile is again displayed no PIN necessary She reads some news before again going back to TV mode Turning Off TV When the movie is finished she turns off the television thus making sure her secured profile is out of reach of her husband 6 2 2 Web Use Cases Following are the use cases for the web interface First a graphical overview of what is possible secondly a graphical use case of how one edits the profile There is only graphical use cases on the web interface as the web portal is beyond the scope of this project and thus we should not be too detailed 6 2 2 1 Web Overview The overview of the web portal Figure 6 1 describes the possible actions premium customers can perform on the web portal CHAPTER 6 SPRINT 2 DETAILED SYSTEM DESIGN 82 The use case is included to show the main actions of the web portal A user can log in to the system as well as view the current profiles create new profiles edit the existing and change the password of the web portal All of this is done on the configuration server with the web portal as
24. begin Before each test subject could begin executing any tasks he she had to read through a manual given at the start of the test Section F 3 This explaining the different buttons that are used and it also contains a task description of the separate tasks These tasks are written based on the use case scenarios from the TV application The first task the easiest is kind CHAPTER 9 SPRINT 5 USABILITY TESTING 126 of a warm up task that focuses on getting in and out of widget mode We believe there will be plenty of users for example elder people that only takes this part of the program into use Task two and three takes the user deeper into our program and challenges him her more The test person will now face all aspects of our program making widgets sticky sticky on a change and place several widgets on the TV at the same time While the test was under progress we encouraged the test person to think out loud This giving us reasonable information about the different parts of the program We observed and could easily see when he she did not know what to do and also what parts that were easy to understand for the test user After all tests had been completed we showed a video of one of the competitor s product Now our test subject was to explain what he liked and disliked between ours and the competitors In this part we mostly got information about the different widgets they enjoyed Table Otherwise the systems looked more
25. button on his remote He now enters the default profile showing news and weather He reads through the news and checks the weather for tomorrow while still following the game Change profile After a while he scrolls to his private profile using the arrow buttons This has among other things a widget with sports results which he is interested in 81 6 2 SPRINT 2 RESULTS Adding Sticky Widgets As there are multiple games played simultane ously he would like to keep the result widget there permanently He clicks the OK button and can now choose sticky widgets He scrolls through the widgets with the arrows until the sports results widget is chosen He clicks OK leaving it on permanently After some consideration he decides to keep the news feed too He scrolls up again to that widget clicking OK to choose it Use Sticky Widgets He now pushes the widget button again going back to watching the game The sports results and news feed are however still present just where he wants them to Now he can watch his game while following the other games played and read the news when the game is too boring Using Secured Profile When the game is over he leaves the TV as is still showing his widgets After a while his wife Jane enters the room Her favorite movie is soon to air She has no interest in sports results so she pushes the widget button as soon as she has changed the channel Now she has John s full profile Pushing the right
26. buttons will still be used for channel changing but only in the TV mode And they can be used for widget specific tasks but only in widget mode Profiles Digiboards wanted a default profile which their customers could provide contents for The paying premium users should have the pos sibility of creating own profiles How many profiles Here we had the issue of how many profiles it should be possible to create We thought about limitless but that did create new issues We thought we should change the profile by using the arrow buttons But with limitless profiles this would take too long time 65 5 2 SPRINT 1 RESULTS Of course not every household would make extremely many pro files This would be for bigger institutions like elder homes and hospitals and such But if or when so many profiles were created it would be chaotic Thus we decided on a roof of 5 profiles We also thought about 8 but 5 is a normal number for these things It is about the size of a normal family and it is big enough to make quite different profiles but still small enough to handle This is of course just a proposition To set the final number of profiles is anyways not our job since we will not implement the final product But we do recommend a relatively small number or change the way one switches profile How to switch between them We do have a way to switch profiles for large number of profiles We thought about using the numeric but
27. chip SoC based on Intel Architecture IA for Internet connected Blu ray players ad vanced cable set top boxes modular DTVs and other connected Con sumer Electronics products This highly integrated device combines a high performance IA processor core with leading edge video decod ing and processing hardware a 3 channel 800MT s DDR2 memory controller dedicated multi channel audio processing DSPs a power ful 3D graphics engine a security processor and support for multiple peripherals JavaScript An object oriented scripting language used to enable program matic access to objects within both the client application and other applications Wikipedia KDE K Desktop Environment A free software project based around its flagship product a desktop environment mainly for Unix like systems The goal of the project is to provide basic desktop functions and appli cations for daily needs as well as tools and documentation for developers to write stand alone applications for the system Wikipedia GLOSSARY 148 KJS KDE JavaScript KDE s ECMAScript JavaScript engine that was originally developed for the KDE project s Konqueror web browser by Harri Porten in 2000 Wikipedia TEX Leslie Lamport s document preparation system built on top of T X LXTEXwas developed at SRI International s Computer Science Labora tory and was built to resemble Scribe TEXadds commands to simplify typesetting and lets the user concentrate on the structur
28. communication nodes and is also an allocation view which others call the deployment view Scenario view A combination of the other views to show their relations 3 2 The Situation and Solutions of Today This section describes how the market for Internet on TV is today 3 2 1 Internet on TV as of Today Broadcasting live television online is something that has been more and more frequently used and known among people The idea of using Internet on the home television is not completely uncommon either The way it has been implemented earlier is however pretty advanced You would often need a keyboard and preferably a mouse to control the browser shown at your tele vision screen The browser being shown is usually a full scale browser which most is familiar with from computer use Having all these components set up correctly you are able to surf the Internet as if it was your own computer This however is proving to be quite a lot of stress just to get online People tend to prefer their laptop or other Internet enabled devices because it is eas ier and more user friendly Most of the solutions that have been implemented today are often quite slow too Sony an Electronic and TV producing company has recently published a video and DVD player that also takes you online They introduced it with a remote control that enabled switching between Internet watching DVDs and watching regular television If you wanted to surf the Internet
29. display web content in windows and implements browser features such as following links when clicked by the user managing a back forward list and managing a history of pages recently visited Its WebCore and JavaScriptCore components are 29 3 1 BACKGROUND INFORMATION available under the GNU Lesser General Public License and the rest of WebKit is available under a BSD style license WebKit Components WebCore A layout rendering and Document Object Model DOM li brary for HTML and SVG developed by the WebKit project Its com plete source code is licensed under the LGPL The WebKit framework wraps WebCore and JavaScriptCore providing an Objective C appli cation programming interface to the C based WebCore rendering engine and JavaScriptCore script engine This allowing it to easily be referenced by applications based on the Cocoa API later versions also include a cross platform C platform abstraction and various ports provide additional APIs WebKit passed the Acid2 test and as of September 2008 nightly builds including Safari 4 passed the Acid3 test as well JavaScriptCore A framework that provides a JavaScript engine for WebKit implementations and provides this type of scripting in other contexts within Mac OS X JavaScriptCore is originally derived from KDE s JavaScript engine KJS library which is part of the KDE project and the PCRE regular expression library Because of forking from KJS and PCRE JavaScriptCore
30. every second week The customer could also ask for extra meetings if they thought it was necessary 2 5 4 Reports The registration of personal work hours was delivered to the project manager every Wednesday and he updated the groups total work amount for the current week The secretary wrote notes from the internal meetings however most of the discussion was dealt with orally We also communicated through email and phone The supervisor and customer meetings had weekly minutes that was writ ten by the secretary The documents was delivered at least 24 hours after the meeting 2 6 Quality Assurance QA This section was written to ensure high quality throughout the project It covers the response time routines for producing first time quality results and routines for minutes and meetings 2 6 1 Defining Quality Defining quality means developing expectations or standards of quality For our product quality meant achieving the following goals e The product must be easy to use e The product must provide a better interaction between user and the TV interface than a browser based product e The product must provide a friendly web interface for managing user s profiles and widgets e The product must have an intuitive and simple way to access user s profiles select and use widgets CHAPTER 2 PROJECT DIRECTIVE 14 2 6 2 Time of Response We discussed the response time with the customer and agreed on the appro priate
31. focus on learning the Scrum process since none of the group members had any previous experience with Scrum or any other agile development methodologies in projects For the first sprint we had a meeting with the customer where we decided what would be most important The product backlog was prioritized and in collaboration with the customer we chose what the Sprint 1 backlog should contain For Sprint 1 the group decided together with the customer that we needed to get the high level design ready The customer told us that we would not get the chip from Intel and would like us to have our main focus on the design part 55 CHAPTER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN 56 5 1 1 Sprint Backlog The tasks to be performed this sprint are together with the customer chosen from the product backlog Table and copied into the sprint backlog Table 5 1 Table 5 1 Sprint 1 Backlog Item Description Est Responsible Assigned Effort Mem bers 1 USE CASES 1 1 Remote Control and TV 32 garnaas garnaas 1 1 1 Overview of T V 8 garnaas garnaas 1 1 2 Turn on off widgets 8 garnaas garnaas 1 1 3 Change widget profile 8 garnaas garnaas 1 1 4 Choose sticky widget 8 garnaas garnaas 2 FUNCTIONALITY DESCRIPTION 2 2 User Interface 14 tirilane tirilane 2 2 1 Remote control and TV 8 tirilane tirilane 2 2 2 Web portal 6 tirilane tirilane 2 3 Alternative Solutions 6 tirilane tirilane
32. however is to make profiles for family members who want one Each member can make their profile add the widgets they want and choose to lock their profile with a PIN code This is in case one adds widgets like Facebook Twitter instant messaging clients or other media one tend to like to keep private and away from parents and siblings One can also kill the default profile and set a new profile as default Or keep the default profile and still set a new profile as default Or just alter the default profile with or without changing the default In short profiles can be added deleted edited locked and be set to default 5 2 1 3 Discussion of Alternative Solutions We have not gone through an actual analysis of the potential best solutions We have however discussed them both internally in the group and with the customer We only discuss the alternative solutions on the remote control and TV The web portal is beyond the scope of this project and we have thus no right to make decisions concerning it Buttons Concerning buttons we wanted to have as few as possible but enough to do what we wanted We found a way to do what we wanted with only one extra button In addition we use some of the already existing buttons on the remote Modes Since we needed to use the TV owned buttons like the arrows and numbers we thought different modes was a good idea This way the owner of the buttons change depending on mode Thus the numeric
33. ikke lov av ST til bruke denne chip en Den er for spesielt utvalgte kunder og dere er ikke en av dem Nedenfor fglger svaret fra ST i sin helhet sa du kan se hva de skriver Sorry but we are not in a position to support this request The board in itself is just a brick in the setup then you need the STAPI software license which cost itself 10k you need the debuggers etc And of course all projects requires support from ST at some point and our support group is already overloaded so we cannot entreprise to support a such project without clearly identified potential Maybe they could turn to one of our partners like Zenterio in Sweden but they are an independant design house so it is up to them to decide if they want to support or not Kristoffer
34. in our architecture design We can express the quality attributes by making scenarios for the quality attributes A quality attribute scenario is a quality attribute specific requirement It consists of six parts which consists of the following according to Bass et al 2003 CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 112 Source of stimulus This is some entity that generated the system Stimulus The stimulus is a condition that needs to be considered when it arrives at a system Environment The stimulus occurs within a certain conditions Artifact Some artifact is stimulated Response The response is the activity undertaken after the ar rival of the stimulus Response measure When the response occurs it should be measurable in some fashion so that the requirement can be tested For our system the main architectural driver which is defined as the attributes that have most impact on the architectural design is usability In discussion with the customer it has become very clear that the usability of the system is the most important attribute Other attributes that are in consideration for our system is availability and performance but these have not as much impact as the usability We have created three quality attribute scenarios for the usability of the system Figure 8 4 Usability Scenario 1 Artifact Response System measure User should Stimulus g Response u la learn the most Learn to s nterface
35. ing OK in profile mode the profile s widgets are shown with stickiness marking That is the non sticky widgets are as normal the sticky widgets are marked in one way and the sticky on change widgets are marked in an other This is the sticky widget mode When entering this mode the first widget is marked specially This is done by fading out the other widgets One can scroll through these widgets by using the arrows A and Y When pushing OK the currently chosen widget changes stickiness If it was not sticky then it becomes sticky If it already was sticky it becomes sticky on change Similarly if it was sticky on change it will no longer be sticky APPENDIX H FUNCTIONALITY DESCRIPTION 3 1 3 Sticky widgets from multiple profiles To set sticky widgets from several profiles one can simply scroll through the profiles using gt and lt while in sticky widget mode making the wanted widgets sticky Then when pressing W and returning to TV mode all of the sticky widgets will be sticky no matter which profile they are from The widgets will keep their stickiness until the TV is turned off If you want different sticky widget you can either turn the TV off and on again or manually change stickiness on the widgets 3 1 4 Placement Because several of these widgets might have the same placement only on different profiles they will be placed according to a pre defined template This is defined on the web portal It starts i
36. is i i important use the usable in an de Environment famili features within ica Runtime pili a 10 minutes u context Figure 8 5 Usability Scenario 2 Response Artifact measure System User should be i Response able to Stimulus pO understand Use the f wna different profiles views when system Environment chandini and how they efficiently Runtime ging work profiles 113 8 2 SPRINT 4 RESULTS Figure 8 6 Usability Scenario 3 er Response _ Artifact _ measure System User should gt pot need to Stimulus OURRIIRDDION Response bother with Feel Look nice uneccessary Source comfortable Environment and simple work User Runtime 8 2 4 4 Logical View The logical architecture primarily supports the functional requirements what the system should provide in terms of services to its users This is usually done by decomposing the system into a set of key abstractions taken mostly from the problem domain in form of objects or object classes Kruchten 1995 We will just focus on the widget application i e the software that will be on the set top boxes and not on the web application We will thus not go through the architecture of the web servers in detail Of course these must also be implemented but this is something Digiboards are going to implement and they are currently working on this solution We will just show the connection with the web application and have an interface for the connec
37. method needs a lot of focus in the early phases while the Scrum method can be more flexible throughout a set of sprints The need of flexibility and contact with the customers was needed for our project This is one of the main reasons we chose Scrum Scrum is also a better model of the real world concerning the requirements may change at any time Discussing with the company they suggested Scrum for this project and told us it has been more and more frequently used during the past years This leaving us an easy choice making Scrum our use of development methodology for this project CHAPTER 4 Requirement Specification and Backlog In this chapter we explain our requirements and the product backlog This chapter specifies the requirements of the final real system The system Digiboards will implement The requirements are thus not connected to the product backlog in the usual way As our product backlog contains tasks like make architectural overview and not implement support for sticky widgets the tasks in the backlog is not directly linked with the requirement specification The requirements does however decide how we are to do the tasks in the backlog Or rather how we shall design the system which is what the backlog tells us to do 4 1 Requirements The requirements are divided into functional and non functional require ments 4 1 1 Functional Requirements The functional requirements Table 4 1 are the requirements the
38. microcontroller for the task given we would be able to choose As we were unable to get hold of any of the microcontrollers this did not help us much 3 7 4 Choice of Microcontroller As seen in Table the Intel CE 3100 is clearly the optimal choice It has better graphics solution 3D acceleration is designed for Internet TV and widgets and has a usable architecture However since these microcontrollers are far from easy to get a hold on the real choice depended on which chip we would end up getting Because it seemed to be impossible to get a hold on the STi7109 the CE 3100 would be our only choice This however would be in the future Intel has no time to help with our project nor give us a chip They might however help Digiboards in the future At this stage we had to forget about the chips and focus on making the prototype for a normal x86 computer 3 8 Alternative Life Cycle Models As a part of the preparations and prestudy of the project we looked into different ways of developing software We specifically looked at two of the most common ways e the traditional waterfall method Wikipedia 2009i e and the Scrum method Wikipedia 2009e 3 8 1 Description of alternative methodologies Here we describe the two different development methodologies 3 8 1 1 The Waterfall Method The waterfall method is a sequential software development consisting of seven different phases The progress is seen as a stream steadily flo
39. of as we do not have enough insight in how to implement it on the microcontrollers nor Adobe AIR with Flex For those experienced with Adobe AIR and microcontrollers it should be possible to start the implementation right away based on our documentation CHAPTER 10 CONCLUSION 136 CHAPTER 11 Evaluation This is the evaluation of both our own work and collaboration as well as the task the customer the supervisors and the course in general 11 1 The Internal Process and Results The internal process was not flawless but it worked We worked well as a group and we managed to finish the project 11 1 1 The Teamwork We collaborated well and worked well as a team What We Have Done Well There were no big issues during collabora tion Everybody were not always on time but nothing later than acceptable There were no fights about how things should be done or who should do it Every little issue that arose was always solved democratically without ever becoming a problem We were good at delegating both tasks and roles so we all knew our responsibilities We spent much of our work time together This made it easier to cooperate and discuss solutions What We Have Done Not So Well What we have not done well is talk English Too much of the internal discussions took place in Norwegian so 137 CHAPTER 11 EVALUATION 138 Alessandro had some trouble staying in the loop We did however do the more official communication in Eng
40. of how we visualize the remote control and how the widgets will look 91 7 2 SPRINT 3 RESULTS 7 2 1 1 Remote Control This remote control Figure is a more normal version of a potential remote control where the numeric buttons are included We use the Arrow navigators lt gt Y A the Widget menu W the Power button ON OFF Select OK and Button numbers numeric buttons 0 9 to handle user input The only unique button here is the widget button W All other buttons are commonly found on all other remote controls The original picture is taken from DVRLife 2006 Figure 7 1 Sketch of the Remote Control Arrow navigators Power button ten m Widget Menu Channel CHAPTER 7 SPRINT 3 IMPLEMENTATION PART I 92 7 2 1 2 Widgets The widgets in Figure are an example of widgets spread out on a screen ts M4 one agers Figure 7 2 Sketch of the Widge T eva Weare Prada o Lira Upelated of UPM May 2006 Jr 23 W WS fr 7 2 2 User Interface The description of the user interface is divided in two parts the TV with remote control and the web portal 7 2 2 1 TV and Remote Control Due to the customer adding extra features we updated the state diagram Figure 7 3 SPRINT 3 RESULTS 2 93 Nid x0 6 0 6 0 6 0 6 0 104 p xsv 6 0 4JUSLUND p je5nu unne Nid T UIN V a asia Nid P3u09 syebpim luoid
41. of usability is the thought of an object being designed with the general users comprehensions This specifically concerning five different points Wikipedia 20098 Learnability How easy it is to accomplish basic tasks 115 8 2 SPRINT 4 RESULTS Efficiency After users have learned the different aspects of the system how fast are they able to solve different tasks Memorability To what extent do users remember the different functions of the system Errors How many errors are made by users and to what extent does it interfere with the actual task How fast do they recover from them Satisfaction How the user feels when using the system To effectively handle these points usability tests are needed This is a technique used to evaluate a product Having nearly finished the product it is important to test everything around it The idea of using persons that has never seen the product before gives us useful feedback for improving the end product By giving these persons several tasks one can easily figure out if the system is good or not The tests mainly focus on learnability efficiency errors and satisfaction Examples of products that typically benefits from usability testing are web sites web applications and typically other human made computer interfaces 8 2 5 1 Usability in This Project For this project we created different tasks concerning the features we wanted tested Then we asked a few persons to sit down and do the t
42. operated and privately owned by Facebook Inc Users can add friends and send them mes sages and update their personal profiles to notify friends about them selves Additionally users can join networks organized by city work place school and region Wikipedia Framework In object oriented systems a set of classes that embodies an abstract design for solutions to a number of related problems die net 147 GLOSSARY Git A distributed version control system developed by Linus Torvalds for handling the Linux kernel Wikipedia Google Talk GTalk A free Windows and web based application for in stant messaging and voice over Internet protocol VoIP offered by Google Inc H 264 MPEG 4 AVC A standard for video compression H 264 is most popular for its use on Blu ray Disc and HD DVD Wikipedia HDMI High Definition Multimedia Interface A compact audio video interface for transmitting uncompressed digital data Wikipedia IA Intel Architecture The instruction set architecture of Intel s most successful microprocessors also called 786 This is the instruction set for the family of microprocessors installed in the vast majority of the personal computers in the world Wikipedia IM Instant Messaging A form of real time communication between two or more people based on typed text The text is conveyed via devices connected over a network such as the Internet Wikipedia Intel Media Processor CE 3100 The first system on a
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44. profile is shown naturally without marking Sticky Mode By pushing OK one enters sticky widget mode This differs from the normal by that each widget is marked depending on whether it is sticky sticky on change or not sticky at all One widget is also marked CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 102 specially to show that this is the chosen widget The first widget is marked as default A and Y changes this widget by scrolling through all the widgets in the profile By pushing OK again this marked widget will change stickiness If not sticky it will be sticky if sticky it will be sticky on change and if sticky on change it will be non sticky Profile Mode lt gt and the numeric buttons will both in sticky widget mode and profile mode change profile The way this happens with PIN code and such has not changed much One thing however is new Instead of returning to the chosen profile in profile mode one returns to either profile mode or sticky widget mode depending on where one was when changing profile This makes it possible to be in sticky widget mode and choose sticky widgets from all the profiles By using the sideways arrows to change profile one can see all the widgets sticky and non sticky and change their stickiness TV Mode When returning to TV mode all the sticky widgets will be sticky Having multiple sticky widgets might have the same placement on different profiles we will have an algorithm g
45. properly you had to connect a keyboard This is all very well but is to most people stressful and too much work just to get online People tend to prefer their computer and no extra need for a keyboard plug in CHAPTER 3 PRELIMINARY STUDY 32 The purpose of this section is to give a bright overview about solutions afforded by other Internet T V providers Our attention is focused not only on the Norwegian market but also towards European and US market analyzing if there exists a solution similar to what the customer wants 3 2 2 Why Did It Not Come Earlier The promise of the Internet on TV has been thwarted by a variety of fac tors The slow pace of broadband penetration in some areas of the world the relative unavailability of Internet based content and the limited ability of existing Consumer Electronics CE may help explain the low rate of adoption On the positive side we are seeing steady progress in all of these areas Faster broadband services are becoming more widely available and TV net works and content service providers are using the Internet to disseminate increasing volumes of content There is another fundamental reason that PC based Internet usage mod els have not won wide acceptance in the TV space TV viewers prefer a simple navigation that provides them with easy access to familiar Web con tent such as sports news weather and Web videos They want to keep in touch with friends and family through social networ
46. side scripting language that can be used for implementing an Ajax application Other languages such as VBScript are also capable of the required functionality However JavaScript is the most popular language for Ajax programming due to its inclusion in and compatibility with the majority of modern web browsers Even though Ajax and XMLHttpRequest both reference XML the data that is used does not necessarily have to be formatted as XML In fact more and more other data formats such as JavaScript Object Notation JSON are being used 25 3 1 BACKGROUND INFORMATION Figure 3 1 Ajax vs Classic I user interface JavaSaiipt call A y mas data user interface Ajax engine HTTP request HTTP request ta s transport nttA s trans HTML CSS data XML data web server web and or XML server Y y datastores backend datastores backend processing legacy systems processing legacy systems classic Ajax web application model web application model Jesse James Garrett adaptivepath com CHAPTER 3 PRELIMINARY STUDY 26 Figure 3 2 Ajax vs Classic II classic web application model synchronous client user activity user activity user activity system processing system processing server Ajax web application model asynchronous client server Jesse James Garrett adaptivepath com 27 3 1 BACKGROUND INFORMATION Classic Model vs Ajax Model Web Applications The classic web appli cation model Figures B 1 and 3 2 Garr
47. start but we still managed to turn around and change our goals CHAPTER 11 EVALUATION 140 One thing that has always been up to date is the report We started with it early and kept writing in it Thanks to this we are in no hurry at the end of the project The use of MTRX has also gone quite well Those who did not know it mostly learned and manages to use it without too many mistakes The division of the content into multiple files have also minimized the problem of editing the same file But this was mostly solved because of Git the version control We had some starting problems but after a while we got the hang of it and it worked well since What We Have Done Not So Well Git caused some trouble in the start mostly thanks to the policy of committing everything We should have made a policy of not committing any auto created files XTfXcreates many files during compilation e g aux bbl blg toc lof lot out and pdf When adding any of these files from another person s compilation we got merge conflicts If we made it clear that Git was only for tex and other self written files we would have avoided many problems Another mistake was being too democratic Java was the only language everybody knew hence we chose that language to implement the demo How ever everybody did not contribute to the implementation and those who did could easily and with great advantage have used another language For example C and
48. that specific time There is a state diagram covering the buttons actions the states and the modes figure 1 Here the states and the change of state due to button pushes are colored green Actions and automatic state change and others due to these actions are colored blue Branches are colored red 2 1 Buttons The solution needs a remote control with one extra button W but uses also some of the normal remote buttons That would be the arrows lt gt A Y and the OK button in the middle On some remotes this is called SELECT The numeric buttons 0 1 2 3 4 5 6 7 8 9 are also used The ON OFF button is used in our description but not in the widget mode L lt Left arrow R Right arrow U A Up arrow D Y Down arrow OK OK SELECT button in the middle W Widget button ON OFF Power off button for the TV 0 9 Numeric buttons H 5 6 0 JUSJIn gt y DioMvFL6 0 is 05 pansy Nid 104 paxsy p je5nu unne Nid T Uan JUUN puomssed pauo lyosd JUNI JO s1 DpIM IIe MOUS pouu ajyoid epow j 6piW pus syeBpim JJNS UM AL Spa a1TJ01d 340 NO aBueys u0 Ay9 NS J9PIMA DAL W 330 NO Ass AANS J96PIM4 ABI AnS S 39 BpIM4 sbuey gt uo x515 SI 9BpIM4 ANS Jou s 38 pime P piMe Ayo gs un 4Je6pimy SAL W llneJ p JUIUNI Aquaseyip sze6pim aBueys u0 AxD gs pue sjabpim s s3 BpuA Ieuuulou M
49. the widget application asks the content server if there are any changes and do a pull call to get infor mation The content server will typically be a Digiboards maintained server and the different widgets are approved by Digiboards to ensure that they will work on the system The content server part will not be implemented in our project but we will show how the system will interact with the widget application and we will also sketch the design part for the content server 5 2 3 3 Configuration Server The configuration server is responsible of the Internet interface for the sys tem The user is able to login to create different profiles and to edit the profiles to reflect the users demands After the user have confirmed his choices on the web pages the configuration server should be able to push the information to the set top box so that the user immediately gets the desired widgets on the television If the user decides to add widgets that is not cur rently stored on the widget application the widget application will contact the content server and download the widget So there will be a coherence with the widgets available on the configuration server and the content server 73 5 3 SPRINT 1 EVALUATION The configuration server will also be described but not implemented for the final presentation 5 2 3 4 How the Different Parts Will Work Together The three different components of the system will need to communicate with each other to
50. they were aware of their rights Appendix Section F 2 9 2 1 2 The Test Before each test subject could begin any tasks he she had to read through a manual given at the start of the test Section F 3 This explains the different buttons that are used and it also contains a task description of the separate tasks While the test was under progress we encouraged the test person to think out loud This giving us reasonable information when he she did not know what to do and what parts that were easy to understand After all tests of our product had been completed we showed a video of one of the competitor s product Now our test subject could explain what he liked and disliked between ours and the competitors To fully optimize the results of each test we handed out a form with some questions we wanted answered Section F 4 9 2 1 3 The Evaluation of the Test For the tests we wrote a few tasks we wanted the test subjects to complete These tests are primarily to improve the customer s end product and not our demo However we did manage to change a few things with our demo as well It should also be mentioned that all test subjects are given full immunity and will not be mentioned by name in our report Each person had to sign a paper that stated he she was aware of his her rights also stating they could quit at any time they felt like Appendix F Section F 2 When all the formalities were set the user testing could finally
51. time Table 2 4 If for some reason the response time was too short a new response time would be discussed Table 2 4 Time of Response Task Time Limit Arrange a meeting 24 hours before the meeting Approval minutes of customer meeting 24 hours Feedback on phase documents the customer 24 hours would like for review Approval of phase documents 24 hours Answer to a question 24 hours 2 6 3 Routines for Producing Quality This section explains the routines followed to ensure quality and approval of all documents produced and all code written 2 6 3 1 Routines for Producing High Quality Internally Each group member approved the following routines We had three internal official weekly meetings according to the free time of each group member e On Monday the meeting starts at 08 00 and finish at 09 00 e On Wednesday the meeting starts at 12 00 and finish at 12 30 e On Thursday the meeting starts at 10 00 immediately after the meeting with our supervisors and finishes at 10 30 More meetings were arranged when needed Rooms for these meetings would vary depending on the availability Meetings were arranged by sending an email to the kpro2 mailing list kpro2 idi ntnu no stating the room and the purpose of the meeting Minutes for the internal meetings were sent to the kpro2 mailing list Minutes were approved at the following meeting Each group member was responsible for keeping track of h
52. user interface Digiboards Widget Dashboard DWD enables TV owners to mix in their favorite Internet content without intruding their TV watching The users personalizes the TV content through their web browser where they select dashboard themes and widgets such as weather stocks sports scores social networking photo sharing casual games and music DWD for the digital home is poised to give consumers a new way to receive and interact with rich content applications and services on their Internet enabled televisions It will dramatically change the nature of TV viewing and it is beginning to open a new world of opportunity for the viewers Original Equipment Manufacturers OEM s and content providers Digiboards products most important property the key to their success is how easy it is to use for end users With the click of a single button on a remote control users get their favorite Internet content directly on their TV Their revenues come from a mixed model of ads plus premium usage for a fee and other services 3 3 2 Yahoo s Solution One year ago Yahoo Inc and Intel Corporation P announced a new way to provide this kind of services that revolutionized the user experience They collaborated together to provide a full featured software framework named Widget Channel that allows TV viewers to enjoy rich Internet applications called TV Widgets while watching TV Consumer electronics CE platforms from Intel such as the
53. with a spectrum of downloadable widgets and data services such as localized news weather sports stock tickers traffic updates and instant messaging applica tions Graphics The Intel Graphics Media Accelerator 500 is an integrated pro grammable graphics core It can accelerate both 2D and 3D and supports industry standard graphics APIs such as OpenGL ES 1 1 OpenGl ES 2 0 and OpenVG 1 0 3 7 2 Evaluation of Alternative Microcontrollers At that time we did not know which microcontroller we would end up with or if we would end up with a chip at all We evaluated the different micro controllers so we could be ready if we got one of them Table 3 3 Comparison between STi7109 and Intel CE 3100 STi7109 CE 3100 CPU ST40 Intel R Pentium R M Architecture SuperH IA Strategy RISC CISC Frequency 266 MHz 800 MHz Graphics 2D 3D Video Streams Television Internet Vased Video Content OS Linux Windows CE OS21 Everything designed for x86 CHAPTER 3 PRELIMINARY STUDY 42 3 7 2 1 Comparison of Microcontrollers Hardware The most important difference between the chips is the platform As the STi7109 is based on the SuperH CPU core is CE 3100 based on the Intel R Pentium R M CPU This would be the difference between a normal microcontroller CPU and the x86 architecture normal for personal comput ers This being the difference between the basic instructions designed for the controller and everything
54. work Figure B 9 The widget server will play the most im portant role as it is the one the user will interact with and think of as the system The other components are the one who will have the content and know what should be shown The content server will need to be connected with the Internet in some way to get the updated information on the widgets The configuration server will need to have the web interface so that the user can log in and edit his hers profile and make changes on profiles The communication between the widget application and the two servers will go through the cable provider either through cable of fiber 5 3 Sprint 1 Evaluation After finishing Sprint 1 we had a meeting where we reflected over the results We found that the team is working well together and the major concern for our next sprints is the possibility of sickness This leads to more work for some of the group members and since we are having a effort budget with the goal of 1879 time hours sickness also leads to more work later The first day when we also had to learn Scrum made the first sprint sort of a test for the following sprints Either way we worked this out fine by following a reference guide How to Implement Scrum in 10 Easy Steps Waters 2007 The burn down chart Figure tells us how we have planned the hours for the sprint and also how it actual went After each day we mark how much time have been spent and the goal is to end up at zero h
55. written for IA This do not including things that are too hardware demanding In our case this is the difference between very unlikely that Adobe AIR Flash will run and highly likely that Adobe AIR Flash will run which again makes CE 3100 the ultimate choice The goal of Intel is to ship the first CE 3100 chip with Adobe Flash Lite as stated in Intel Corporation 5 Jan 2009 so that at least some Flash will work Video Streams The largest difference here is that STi7109 is designed to be a television while CE 3100 is designed for Internet based video content Needless to say the CE3100 were be the preferred chip Graphics STi7109 has 2D acceleration while CE 3100 has both 2D and 3D acceleration The scope of the two are quite different but at the same time similar The STi7109 is designed for television and can thus do things such as handling both the TV and VCR DVD merge streams from different sources such as cable and satellite and add extra disk space The CE 3100 is a television chip designed with widgets in mind It has good support of Internet TV and has the hardware to handle downloadable widgets In short the CE 3100 is absolutely the best choice as for it is designed for the widgets we need and not just for being a television Operating Systems The STi7109 can run Linux and Windows CE The CE 3100 can because of its x86 architecture run every operating system designed for normal personal computers with x86 However i
56. 01 60UY skepe Bus pue uorezuawajdwi uBis q SL o1 g0 8 orgo 60080 ny 6o ol gsonyl ep Sujuue d 1uuds vk i 60 0L bL POM 60 0180nul sKep Z ubisap uu ls s paylejaq z 1uuds el 60 01 ZO0P93M 60 01 Z0 POM Kep L Uuole41 suouu p PUL M uuds E PAN 60 01 90 NL 60 01 S0UON S Bp z Bursa eula LL 60 01 p0 UNS 60 01 ZO Uy S ep Susa pue uorezuaua dul uBis q OL 600r Ony 6O OL LONYL ep Sujuue d 1uuds E 6 60 01 Z0P3M GO OLLONYL s ep uBis p uu ls s ana uBiH 1uuds 8 60 82 60 60 8z uow 60 608Zu0A sK ep O yoda 2 fo1d jo lSAIJap a1d E z 60 57 60 91 i 60 60 SZ H4 60 60 91 P92MmM SAep OL Bopyoeg onpolg El 9 i 6041 i 60 60 41 nyL 60 60 ZL Ny skep 0 paysiuyy pnis a14 El S s s 80 92 60 60 LL M4 60 80 9Z P M s eD L pn s 1d El r AS g0 Sz 60 60 80 n l 60 80 SZ NL Shep SL Buluue q El Le UTU go sz O LGL nut 60 so szent s ep 9 Apnjs Jl s pue seunjoe7 E z 10 NN 20571601161 mul 60 so szeni shep 7g juowebeuew J09 014 E L se zz 61 9 ELOL ZO PO LO 6z 9e Ez Oe Z I vt S0 SO zo 6z 9z Ez Oe Zt Ht t go0 so co og zz re Lc 8L e 6003 ISQUISAON 6003 1990190 6003 J equajdas ysiul4 Hes uolyeing SUN Se L al APPENDIX C Risk Analysis This is the risk analysis for the project There risks are divided on the two tables Tables and C 2 Activity describes which parts of the project that will be affected Risk Factor describes the actual problem what
57. 1128 19 1320 126 1446 162 1608 204 1814 APPENDIX E Block Diagrams In this appendix are the block diagrams of the microcontrollers we have been discussing ST s STi7109 Figure E 1 and Intel s CE 3100 Figure E 2 Figure E 1 ST Micro STi7109 Single Chip Set Top Box Decoder 5 x 2 ch DDR PCMout S PDIF SDRAM x AudioL SD Peripheral 1 O O PCM in AudioR ioi and external interrupts video In a 4 4 32 32 Audio v ST40 core 266 MHz x DACs Video 2x VF IR MAFE a 15 K isch LM Audio decoder SmCard Tx Rx interface PWM Int trol and interfaces MMU ae System ST231 Digital USB 6x GPIO 4x 3x 32 K Deache LMI core eee 20 ILC UARTs SSCs L video input z STBus 2 x PDES CP 1 Video decoder DEI E ee FDMA VC 1 inc WMV 9 E Wna 4 H264 MPEG 2 itter ain videof Display display PTI Clock 87231 compositor Au vides ener generator display and system services Ethernet DVI HDCP Output stage TSmerger router MIVRMII HDMI Ps gt VRMII for 100BT TMDS main video Main video Aux video Flash Ethernet output HD output HD output SD or companion chip TSINO TSIN1 TS 1 0 YPbPr
58. 3 The user wants it to be sticky on change and presses the OK button a second time The user do not want the widget as sticky after all and presses the OK button a third time User wants more sticky widgets and repeats from step 2 User wants to select sticky widgets from another profile and uses the buttons to get to the preferred profile then repeats from step 2 109 8 2 SPRINT 4 RESULTS Figure 8 3 Sticky Widgets TV Interface Sticky Widget Set sticky widget Ads Choose sticky on change A SPS se Ci Content server Change profile a much the whole sticky functionality to implement this in our system and still have an easy to use system The use case explains how a user can make one or more widgets sticky When a user turns on the Widgets he she enters the profile mode which means he she can only view the widgets and change the profile to be shown on the screen the A and Y buttons have no functionality here To get into sticky widget mode he she presses the OK button Now all the widgets except one that will be shown as selected will be faded out and the user can use the A and Y buttons to select a widget When the preferred widget is selected he she presses the OK button to make the widget sticky 3A sticky widget will sticks to the screen even when the user turns off the other widgets CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 110 To make the widget sticky on changd the u
59. 50 68 56 124 19 143 15 158 6 64 5 5 12 17 60 77 50 127 127 27 Pre study 4 4 32 36 72 108 67 175 43 218 218 36 36 60 96 36 32 Requirements specification 18 18 24 42 30 30 36 66 Design 44 44 30 30 60 90 Programming and documentation Project evaluation Presentation and demonstration Total hours estimated 95 95 122 217 186 403 156 559 172 731 190 921 Total hours actual 94 94 124 218 176 394 138 532 121 653 125 778 Week 42 Week 43 Week 44 Week 45 Week 46 Week 47 Activity 08 10 14 10 15 10 21 10 22 10 28 10 29 10 04 11 05 11 11 11 12 11 19 11 24 224 22 246 24 270 21 291 20 311 14 325 Project management 24 64 19 83 20 203 9 212 20 232 20 252 24 74 30 204 6 210 6 216 6 222 42 264 Lectures and self study 19 89 37 226 18 244 20 264 10 274 24 298 56 56 156 156 156 156 Planning 3 67 4 71 2 173 173 173 173 27 27 127 127 127 127 Pre study 8 226 2 228 0 228 228 228 228 Requirements 32 32 132 132 132 132 specification 31 73 11 84 12 96 6 102 102 102 30 96 30 26 30 156 6 162 162 162 Design 33 77 62 39 60 199 28 227 12 239 239 Programming and 60 50 80 230 80 310 60 370 30 400 12 412 documentation 29 29 68 97 77 174 41 215 48 263 263 24 24 24 48 24 72 Project evaluation 2 2 2 3 5 22 27 32 59 40 99 Presentation and 66 66 90 156 66 222 demonstration 40 40 120 160 Total hours estimated 138 1059 162 1221 140 1361 183 1520 170 1714 158 1872 Total hours actual 149 925 203
60. AIR can be used on the IC preferred over Flash If Adobe AIR is not possible Verify that Adobe Flash can be used on the IC H 264 video and animated SWF file Performance tests video animations Performance tests TV channel in combination with Adobe Flash AIR video and animations side by side amp overlaid Design and implement a Flash AIR API for user interaction through a remote control iii Iv Preface This report is the result of a project work performed by group 2 in the course TDT4290 Customer Driven Project at the Department of Computer and Information Science at the Norwegian University of Science and Technology during the fall 2009 The course is worth 15 credits half of the total semester work load The goal of this course is to give the students a taste of a real project with real customers demanding a real solution to real problems The goal is thus to teach the students fundamental software engineering skills through realistic training in software development and project management We would like to thank Robin Skoglund and Harald Amundsen the per sons representing Digiboards AS for good cooperation and feedback through out the project We would also like to thank our supervisors Reidar Conradi and Snorre Gylterud Trondheim 18th November 2009 Alessandro Boron Ane Min Hofplass Garnaas Lars Martin Riiser Haraldsen Morten Weel Johnsen Tiril Anette Langfeldt R dland Jarle Erdal Steinsland
61. Conradi Main supervisor Address Skule Bardssons gate 11 7052 Trondheim Phone 47 918 97 028 47 73 59 34 44 Email conradi idi ntnu no A 1 APPENDIX A STAKEHOLDERS A 2 Snorre Gylterud Assistant supervisor Address Vallerveien 150E 1346 Gjettum Phone 47 926 46 885 Email gylterud stud ntnu no Project Group Email list kpro2 idi ntnu no kpro2009 digiboards com Alessandro Boron Address Magnus Den Godes gate 2 7030 Trondheim Phone 47 450 19 532 Email boron stud ntnu no Ane Min Hofplass Garnaas Address Maristuveien 9 7030 Trondheim Phone 47 980 74 235 Email garnaas stud ntnu no Lars Martin Riiser Haraldsen Address Kjgiaveien 43 1386 Asker Phone 47 454 05 764 Email larsmaha stud ntnu no Morten Weel Johnsen Address Sandgata 14 7012 Trondheim Phone 47 450 33 346 Email mort john stud ntnu no Tiril Anette Langfeldt R dland Address Bahus gt 14A 7014 Trondheim Phone 47 996 45 285 Email tirilane stud ntnu no Jarle Erdal Steinsland Address Steinsnesvegen 2 5518 Haugesund Phone 47 938 13 563 Email jarleerd stud ntnu no APPENDIX B Concrete Plan Here follows the Gantt table Figure B 1 used for the project B 1 B 2 CONCRETE PLAN APPENDIX B Gantt Table Figure B 1 9Bed
62. IR Hardware The chip has good memory support Its memory controller sup ports three independent 32 bit DDR2 memory channels with a peak band width of 9 6 GB s Each video unit including the video decoder the display processor the graphics and the video display unit has a dedicated connec tion to the memory controller thus giving up to 3 2 GB s of independent bandwidth All traffic that is not video such as disk and network traffic compressed streams and audio shares a separate system bus using a star topology Each peripheral has a bandwidth of 1 GB s to the hub and the hub has another 3 2 GB s through to the memory controller 41 3 7 ALTERNATIVE MICROCONTROLLERS Video Streams Luckily for us CE 3100 is designed to play with Internet based video content The Intel R Media Play Technology enables the CE 3100 to decode video content from broadcast and broadband sources Whenever a viewer watches a broadcast channel the video is encoded in a standards format such as MPEG 2 H 264 or VC1 and the streaming media drivers route the video to the on chip hardware decoders As soon as the view switches to an Internet channel the software au tomatically route the video to a software codec Then the processor core provides the computational capacity to perform the task By doing the de coding in software the CE 3100 has the flexibility to adapt to changing standards And most importantly the CE 3100 allows viewers to interact
63. JFrame at the top center of the screen with the name of the profile currently displayed Secondly we added another widget to each profile so that the two profiles now had three in stead of two widgets in them This was in an attempt to enhance the difference between the widgets that were selected and those that were not when in widget selection mode 9 3 Sprint 5 Evaluation The Sprint 5 was mainly about the usability testing and we managed to have usability tests One problem that occurred was that our implementation had some bugs that needed to be fixed This resulting in a reschedule of the usability tests This was a minor problem but it could have reduced some 131 9 3 SPRINT 5 EVALUATION of the workload if we managed to run the tests earlier in the sprint The usability tests went very well and we felt like we got good feedback on our demo regarding usability We found some things we would probably never have thought of if we did not have the possibility of usability testing It also showed that usability testing will play an important role in the future work of the system concerning whether or not it will be a success For Sprint 5 we did not get the usability testing in the planned sprint so we are one day behind with the hours for this sprint This is catched up with having one day extra for the sprint with usability tests Otherwise the Sprint 5 went as planned Positive e The group worked well as a team e Everyone met up at t
64. O A A od 48 e RA A ae ee Ge 59 5 2 Dertanlt POT ad OR og a se E g ua Sica A ee eR Ore 59 Ed Pd eee ee ee ee as 60 5 4 The Chosen Profile tidad 60 Loh E goed Ba ee ee Wes ee Be Gn 61 LARIOS Rt ae we e we QE SDD 61 5 7 State Diagram of User Input 22 52 8245 e 8 eae 8 62 s Qe s Pe ed Pee E S oe oe A 1 eae 67 AE 71 5 10 Sprint 1 Burn Down Chart cocida E 75 sunsu oe he a eee e O A ee 82 6 2 Edit Profile s Seos aras ew we w e Q Oe W W wO KUN 83 6 3 Sketch of a Very Minimal Remote Control 84 ook y t ae Swipe due oe 84 Gk sot A 85 6 6 Sequence Diagram for Web Portal 85 ah A e S Bae se Bo O 86 6 8 Sprint 2 Burn Down Chart 2254 224 4 feed o Sos 88 7 1 Sketch of the Remote Control 91 72 Sketch of the Widgets ciar be ee a ES 92 7 3 State Diagram of User Input s 04 ee ee eee PAS ee 93 7 4 Sprint 3 Demo Class 5 0 4 4 644 5 64k we ERED ES 95 7 5 Sprint 3 Burn Down Chart 4 2 22 62 2 Dead de be 98 8 1 State Diagram of User Input 0 103 8 2 TV Overview oa a RO EO a See eh a ae 104 8 3 Sticky Widgets exis cercas ee dew eR ES 109 84 Usability Scenario ll cia ade dd a6 oul A 112 8 5 Usability Scenario 2 _ a r eM ae 112 8 6 Usability Scenario 3 cae ra a 64 Se A 113 8 7 Logical View of the System 4 24 6 4544 eee bw eee A 114 8 8 Sprint 4 Demo Class lt lt lt lt 118 8 9 S
65. Qt instead of Java and Swing The use of Java caused much frustration and quite a few problems as Mac OS X does not have Java 6 which we needed The implementers should also have started commenting their code while coding and not after We should probably have worked more at the beginning of the project to not get behind on the hours needed We did not feel this as necessary as there was not much to do at the time being We were stuck waiting for a microcontroller that never arrived We probably should have given up on the microcontroller earlier and started working on the project as it is now Knowing when the first micro controller was lost the hope for a new microcontroller came Unfortunately this microcontroller never showed up either We should also have worked a bit harder later so that the demo could be finished by the end of Sprint 4 This resulting in the usability test being postponed We should have planned the sprints better We started out with two sprints of two weeks changed it to four sprints of one week and then added 141 11 2 THE CUSTOMER AND THE PROJECT TASK an extra sprint at the end of Sprint 4 We should have had this planned out before we started The Assignment Goals We did not reach the original assignment goals as the project was changed The original goal was to make either Adobe AIR or Adobe Flash run on a ST Micro STi7109 Single Chip Set Top Box IC This was later changed to a Intel CE 3100 microcont
66. RL fragment identifier the portion of a URL after the to keep track of and allow users to return to the application in a given state e Any user whose browser does not support Ajax or JavaScript or sim ply has JavaScript disabled will not be able to use its functionality Similarly devices such as mobile phones PDAs and screen readers may not have support for JavaScript or the XMLHttpRequest objects Also screen readers that are able to use Ajax may still not be able to properly read the dynamically generated content The only way to let the user carry out functionality is to fall back to non JavaScript methods This can be achieved by making sure links and forms can be resolved properly and rely not solely on Ajax In JavaScript form submission could then be halted with return false e The same origin policy prevents some Ajax techniques from being used across domains although the W3C has a draft of the XMLHttpRequest object that would enable this functionality e Ajax opens up another attack vector for malicious code that web de velopers might not fully test for 3 1 2 5 WebKit WebKit WebKit 2009 Wikipedia 2009j is an open source web browser engine WebKit is also the name of the Mac OS X system framework version of the engine that is used by Safari Dashboard Mail and many other OS X applications Several browsers such as Safari and Google Chrome use WebKit engine The WebKit engine provides a set of classes to
67. System Requirement Priority Description SET ToP Box FS1 High The system shall use Adobe AIR or at least Adobe Flash FS2 High The system shall run on the CE 3100 microcon troller FS3 High The widgets shall be accessible from the remote control FS4 Medium The remote control shall not need unnecessary many extra buttons FS5 Medium Immediate response of some kind WEB SERVER FS6 High The widgets shall be retrieved from the server FS7 High Premium users shall have access to the web server 4 2 Product Backlog The product backlog is the master list of all functionality desired in the product It contains a broad description of all required features functional and non functional requirements wish list items etc According to the cus tomer s needs the following priorities are assigned to each backlog item High The criterion must be met to satisfy the customers demand Medium The criterion should be met to satisfy the customers demand Low The criterion should be met but not have priority Once the priorities are defined the top priority backlog items are sup posed to be completed during a sprint These items become the sprint back log Our product backlog Table 4 3 contains all the tasks to be done The architecture implementation and testing are the most time demanding tasks On the other hand both much of the architecture and testing have CHAPTER 4 REQUIREMENT
68. TER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN 76 CHAPTER 6 Sprint 2 Detailed System Design This is the documentation of the progress results and acquired knowledge during Sprint 2 of the project This second sprint took place between 8th and 14th October 2009 6 1 Sprint 2 Planning We started Sprint 2 with a planning meeting having all group members and the customer present We decided that the Sprint 2 we would continue to focus on the system design We had to create use cases for the web portal add scenarios and sketches to our functionality description We also found the need to continue with the architecture making the class and sequence diagrams In this sprint the customer wanted us to start making the demo hence we added this to the Sprint 2 backlog Our goal for this sprint was to get a window to appear and disappear in the demo 6 1 1 Sprint Backlog The tasks to be performed this sprint are together with the customer chosen from the product backlog Table and copied into the sprint backlog Table 6 1 if CHAPTER 6 SPRINT 2 DETAILED SYSTEM DESIGN 78 Table 6 1 Sprint 2 Backlog Item Description Est Responsible Assigned Effort Mem bers 1 USE CASES 12 Web Portal 8 garnaas garnaas 1 2 1 Overview of web portal 8 garnaas garnaas 2 FUNCTIONALITY DESCRIPTION 2 1 Scenarios 8 tirilane tirilane 2 1 1 Use widgets 4 tirilane tirilane 212 Edi
69. V There are two rules that limits the amount of advertisement a TV station can have Rule number one states that the commercial breaks can maximum last a total of 15 of the program time a TV station has during one day The second rule states that there can be a maximum of 12 minutes of commercial breaks for each hour Some TV stations tend to avoid these laws by broadcasting from abroad The subscription fee model is also used by a few TV stations e g TV1000 Canal By paying this fee you get access to some TV series and movies before they are shown on other TV stations 3 1 1 3 Content Distribution There are several different technologies for distributing TV content to the end users The most common in use to day are digital broadcast cable satellite and IPTV For distributing its content a TV station has the choice between owning its own infrastructure selling its content to distributors or a combination of both The most common way for a TV station to distribute its content in Norway is to license its content to distributors like Get Canal Digital Lyse Altibox etc Exceptions to this are NRK and TV2 which along with Telenor owns Norges Televisjon AS NTV the owner of the dig ital terrestrial Both of them distributes their content on this infrastructure in addition to license their content to all the other distributors Another exception is Viasat the company owning TV stations like TV3 and Viasat 4 that owns their own satell
70. YC CVBS NRSS A APPENDIX E BLOCK DIAGRAMS E 2 Figure E 2 Intel R Media Processor CE 3100 Intel 3 Channel Multi Port DORZ Controller Pentium M si E Processor Video Ou Multiformat Display Graphics Composition Decoder Processor Processor 800MHz MPEG2 e Interlacing 20 30 VCIAL264 10 Shader Architecture Dual Decode Transport Security Processor Processor E Audio DSP maaa nn aen 7 7 RTC Timer MSPOO l nterrupts Y Rentable only when HOM Tx is Enabled APPENDIX F Usability Testing The following files were used during the usability testing F 1 The Tests These are the usability tests The tester filled out the blank slots during the test F 1 1 Basic Use The basic test of turning on and off the widgets Table F 1 Table F 1 Basic Use ID TBU Name Basic use Description Basic functionality turn on and off widgets Tester Test Subject Date Pre requirements System available Description Grade 1 Turn on the widgets 2 Turn off the widgets F 1 APPENDIX F USABILITY TESTING F 1 2 Profiles F 2 The task of this test Table F 2 is to change between the different profiles Table F 2 Profiles ID TP Name Profiles Description Using different profiles Tester Test Subject Date Pre requirements In widget mode Description Grade Switch to th
71. age 21 3 1 BACKGROUND INFORMATION Feature RIAs in the Browser RIAs on the Desktop Application Applications are updated AIR provides APIs that updates by pushing new content allow applications to be to a website updated as easily as pushing new content to a website Multiple oper Applications run on mul AIR applications are ating system tiple operating systems cross platform so they support and browsers can be installed on and run on multiple operating systems Programming JavaScript is provided Integrated JavaScript languages by browsers and Action and ActionScript virtual Script is provided by machines are compatible Adobe Flash a Player with the browser Background RIAs can run only in a Applications can run capability visible browser window in the background or provide notifications like traditional desktop applications Persistence Activity is limited to the RIAs are installed and browser session When available on the desktop the browser is closed in They store information formation is lost locally and operate of fline Desktop inte Applications are sand Applications can access a gration boxes so desktop inte desktop file system clip gration is limited board drag and drop events system tray noti fications and more User interface control RIAs run within a browser window that has its own controls brand ing and integra
72. an interface Figure 6 1 Web Overview Web Interface embelir com Login for your household View current profiles for household Make new profile User Configuration server Edit profile Change household passwol N 6 2 2 2 Edit Profile This use case Figure is a more detailed view on how one can edit one s profile One can change much on the profiles and widgets One can list the available widgets seek out new widgets choose one of them and add it toa profile One can change a widget s location on the screen both for normal view and for when it is sticky One can also change the PIN code for secure profiles as well as delete the profile 83 6 2 SPRINT 2 RESULTS Figure 6 2 Edit Profile Edit profile View list of available widgets Seek new widgets Choose widget Change widget location on screen Choose sticky widget location Configuration server User Set change PIN Delete profile 606009 6 2 3 Sketches We have made sketches of how we visualize the remote control and the wid gets will look 6 2 3 1 Remote Control This remote control Figure is a very minimized version of a remote control but it does have the almost all the buttons we need It does lack the numeric buttons it can be used for non secured profiles All we want in the remote control is numeric buttons arrow keys an OK button and our special widget button W This widget button is special for our remot
73. and general management CHAPTER 2 PROJECT DIRECTIVE 6 2 2 2 2 Lectures and Self Study This task included both the seminars and other lectures in this course as well as the time needed to learn the technologies used in this project That would be Git BTFX and the programming languages needed 2 2 2 3 Planning Planning was the creation of the project plan the phases milestones project organization templates standards and QA 2 2 2 4 Prestudy Prestudy includes the usual prestudy as well as the research The research was in this case both the market investigation and the more technical research on Adobe AIR Flash and STi7109 Intel CE 3100 2 2 2 5 Product Backlog The product backlog contains a broad description of all required features wish list items and so on prioritized by business value and development effort 2 2 2 6 Sprint X All the sprints were built on the same structure Sprint Planning The planning of the sprints included the sprint backlog and the overall description of what was to be done Sprint Documentation This is the documentation of what we did in the sprint It includes diagrams and description In short everything except the code Sprint Evaluation After each sprint we evaluated what we did and looked for improvements 2 2 2 7 Project Evaluation The final evaluation of the entire project 7 2 3 PROJECT ORGANIZATION Table 2 1 Milestones Milestone Dat
74. and the relationships among them An architectural pattern is a description of element and relation types together with a set of constraints on how they may be used e Reference model is a division of functionality together with data flow between the pieces e Reference architecture is a general architecture that can be used to cover various customers needs e Software architecture is a specific architecture that covers a specific customer s need Figure 3 3 Software Architecture Reference model Reference Software Architecture Architecture Architectural Pattern 3 1 3 1 4 1 View The 4 1 view is widely used in architecture and consists of different views These are namely Logical view development view process view and physical view The latest combines the four views into a scenario view The views are described as followed Bass et al 2003 Logical The elements are key abstractions which are mani fested in the object oriented world as objects or object classes This is a module view 31 3 2 THE SITUATION AND SOLUTIONS OF TODAY Process This view addresses concurrency and distribution of functionality It is a component and connector view Development This view shows the organization of software mod ules libraries subsystems and units of development It is an allocation view mapping software to the development environment Physical view This view maps other elements onto processing and
75. and widgets This is only accessible for the premium users H 3 Contents 1 Users 2 Navigation A cr ena we RE a HERO HERR HEAR ERR Wi I eee yu ee ee ee ee Z 221 TY DOS sas ee RW AAO kuk S 2 puma b QE S x 222 Widget Mode conoser Pe gre m ye Ones 24 229 Profle Mode cir Sos HE gas us ES SS EES 2 24 Sticky widget mode gt s s o cos son s ee ee ee ee 220 PIN Mode s sdg s S s ee eni RG RR AA 3 Widgets Bl o a a ee ae eee Awe SR IE a ai 3 1 1 Levels of stickiness oaoa Solas Det widgets UU cera ey a Oe AAA 3 1 3 Sticky widgets from multiple profiles oie Placement i pss resore salia 4 Profiles AL SCOURS PEDALES cee ee ee piee ae Pe REE Ee ws 42 Detaglt prole 4 2 2 kb oe REEL ala a E U SUS bem A3 Creating DEDLISS ck setie ga ee A aO Es AA o o v Us 2 s a ORE ERA SS Que Q RHR 45 Changing prone coses Cs e q k s eo s Ca A 5 Conclusion A visual tour of the widgets APPENDIX H FUNCTIONALITY DESCRIPTION 1 Users The system is meant to have two different kinds of users The normal user has access to the default profile all that is shipped with the system The premium user pays for a subscription and has thus access to the web portal with all the to among other things create multiple profiles and buy more widgets 2 Navigation For navigating the system on the television one uses a remote control The actions of the buttons of the control varies depending on which mode one is in at
76. apability More recent versions include ActionScript a scripting language used to create almost all of the interactivity buttons text entry fields drop down menus seen in many Flash applications Flash comes as a browser plug in for all major browsers on Windows GNU Linux Mac OS and different UNIX BSD flavors Flash specializes in vector graphics animation but the latest versions have improved bitmap rendering drastically as well The fact that the vast majority of users already have Flash installed makes it a perfect tool for the job of displaying multimedia as platform independently as possible 3 1 2 3 Adobe Flex Flex Adobe Systems Incorporated 2009c is a free open source framework for building highly interactive expressive web applications that deploy con sistently on all major browsers desktops and operating systems It provides a modern standards based language and programming model that supports common design patterns MXML a declarative XML based language is used to describe UI layout and behaviors and ActionScript 3 a powerful object oriented programming language based on industry standard ECMAScript is CHAPTER 3 PRELIMINARY STUDY 24 used to defines the client side application logic MXML and ActionScript are compiled together into a single SWF file that makes up your Flex applica tion Flex also includes a rich component library with more than 100 proven extensible UI components for creating Rich Internet Applica
77. ards the end deliveries were to be as follow 37 3 6 ACQUIRING THE HARDWARE Figure 3 6 SWOT Analysis of the Widget Channel Strengths The solution is unique new user experience It is easy to brand and personalize Weaknesses Widgets at the moment are available Only for several devices of the an pes ea etait aeoe Opportunities The market is exploding over the next 3 e A prototype of the complete system e Basic research around the project e Thoughts of future possibilities 3 6 Acquiring the Hardware As a part of our research and prestudy Digiboards wanted us to get the information on the devices they chose for us That being the ST Micro STi7109 chip and the Intel Media Processor CE 3100 They wanted us to get in contact and see if it was possible to get hand of an evaluation board for the chip This board is is a developer board to make it easier to develop for the chip Unfortunately this turned out to be a bit hard as student groups do not have much influence on these type of companies 3 6 1 STMicroelectronics In the research of the ST Micro controller STi7109 we found the web page http www st com hard to browse for information After spending hours CHAPTER 3 PRELIMINARY STUDY 38 on searching the web with no results on the evaluation board we sent an email to the distributors of the chip in Norway Appendix ID We sent out emails to three to four companies and got pretty fast resp
78. are the internal documentation of the work this sprint Code is not included 8 2 1 Patent application Digiboards wanted to apply for a patent for the sticky widget functionality While there are other widget systems out there this is the only one with the sticky functionality They wanted help from us for the application First and foremost they wanted use cases and an up to date functionality description We gave them the updated use cases and wrote a stand alone functionality description with the newest design Appendix H 8 2 2 User Interface The description of the user interface is divided in two parts the TV with remote control and the web portal Together with the customer we came up with some changes Among other things the possibility to add sticky widgets from multiple profiles at the same time 8 2 2 1 TV and Remote Control We decided that it should always be possible to change profiles Thus we have redesigned the state diagram Figure and added color codes for easier reading Red arrows are if then cases the green are button pushings and the blue are automatic These are state changes after an action has taken place Similarly the states are green the activities are blue and the branches are red The modes are black Widget Mode Now widget mode consists of two other modes sticky widget mode and profile mode From T V mode when W is pushed one enters profile mode Or rather all the widgets of the current
79. asks We observed and saw how well they performed as well as asking questions on their thoughts after the tasks were completed We wanted to make the system as easy as possible to use Having this in mind we therefore looked into Norman s principles of Human Computer in teractions and Schneiderman s eight golden rules Below the Schneiderman s golden rules Shneiderman 2004 are stated as well as how we are using them in our project 1 Strive for consistency Consistent sequent of actions should be re quired in similar situations Typical prompts menus and help screens should be set up by the same individual terminology making it easy for the user to recognize and familiarize with the environment For our project this point is quite easily met as for having very few buttons the user can interact with S The rules are marked in bold The rest is our description of how we used the rules and what they mean to our project CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 116 2 Enabling shortcuts for frequent and advanced users Abbrevia tions function keys and hidden commands to decrease number of in teractions and increase the pace of interaction We have thought about several shortcut possibilities For instance having profile numbers from 1 9 where you can directly click the number of the profile you want to enter This requires that you know what number your profile is We also thought of an un stick all function where
80. asses WidgetGUI and MainWidgetGUI The WidgetGUI class held the code for the widgets them selves It sets up a JFrame and places it on screen and holds methods to set it as sticky set it as selected and set the opacity of the frame The MainWidgetGUI class is the application entry point It sets up a JFrame of zero size to hold the KeyListener that listens for key input by the user and executes the appropriate actions It also creates the instances of WidgetGUI that is to be displayed Figure 6 7 Sprint 2 Demo Class WidgetGUI id it setSticky boolean setSelected boolean adjustVisibility boolean MainWidgetGUI frame JFrame widgets ArrayList lt WidgetGUI gt main String When a user entered selection mode all the widgets that were not selected had their opacity set to 70 We thought this was an intuitive way of showing which widget is the selected one and which widgets are not Also when the application was in T V mode the widgets that were not sticky and thereby not to be visible had their opacity set to zero i e fully transparent However setting a JFrame to transparent or semi transparent is not possible with the official Java 6 API After some research we found that this feature was added in Java 6 update 10 in the private class com sun awt AWTUtilities Sun Microsystems 2009 6 3 Sprint 2 Evaluation In this section we discuss how the sprint went and how the evaluation from last
81. ations on the other hand usually cannot afford to do any in house production They let specialized production companies do the production of local content for them and buy the rest of their content from other providers There are also those TV stations that do not produce any content of their own but rely solely on buying from others Most TV stations on the Norwegian market do not have many shows that are produces by themselves One exception is the government owned TV station NRK that has a high share of Norwegian content that they produce in house Another TV station that has above average ratio of Norwegian self produced content is TV2 The other TV stations buy most of their content from major TV networks in the United States and the United Kingdom It is expensive to buy TV content but having a production company produce a TV show for you is even more expensive Having your own TV studio to produce your own TV shows is the most expensive There are 19 3 1 BACKGROUND INFORMATION three ways TV stations can make money having a tax or license advertising or a subscription fee In Norway the government owned TV station NRK is funded by a biannual TV license which all households with a TV must pay Most TV stations though are funded by advertisement In Norway there is a law that limits the amount of commercial advertisement a TV station is allowed to air This results in fewer commercial breaks in Norwegian TV compared to American T
82. bability of faults happening Usability is concerned with how easy it is for the user to accomplish a desired task and the kind of user support the system provides It can be broken down to the following areas Bass et al 2003 Learning system features If the user is unfamiliar with the particular system or a particular aspect of it what can the system do to make the task of learning easier Using a system efficiently What can the system do to make the user more efficient in its operation Minimizing the impact of errors What can the system do so that a user error has minimal impact Adapting the system to the user needs How can the user or the system itself adapt to make the user s task easier Increasing confidence and satisfaction What does the sys tem do to give the user confidence that the correct action is being taken 8 2 4 2 Architectural Documentation We will here try to give an architectural documentation of the system that should be implemented later by Digiboards This documentation will be based on Bass et al 2003 and IEEE 1471 2000 which is an IEEE standard for describing the architecture of a software system It will not follow entirely the IEEE 1471 standard but it will be used to extract some important point that will be mentioned in our documentation 8 2 4 3 Quality Attribute Scenarios The quality attribute defines the non functional requirements for the system and we need to consider this
83. ber 2009 URL http webkit org Wikipedia Adobe Flash Wikipedia The Free Encyclopedia 2009a Online accessed 24th September 2009 URL http en wikipedia org w index php title Adobe_ Wikipedia Ajax programming Wikipedia The Free Encyclopedia 2009b Online accessed 24th September 2009 URL http en wikipedia org w index php title Ajax_ programming o1did 315323113 Wikipedia Human computer interaction Wikipedia The Free Encyclope dia 2009c Online accessed 22nd October 2009 URL http en wikipedia org w index php title Human E2 807 93computer_interaction amp oldid 320586621 Wikipedia Model view controller Wikipedia The Free Encyclopedia 2009d Online accessed 27th October 2009 URL http en wikipedia org w index php title Model1 E2 807 93view E2 80 93controllergoldid 322031337 Wikipedia Scrum development Wikipedia The Free Encyclopedia 2009e Online accessed 8th October 2009 URL http en wikipedia org w index php title Scrum_ development o1ldid 318267105 Wikipedia Television Wikipedia The Free Encyclopedia 2009f Online accessed 8th October 2009 URL http en wikipedia org w index php title Televisiongoldid 318539506 Wikipedia Usability Wikipedia The Free Encyclopedia 20098 Online accessed 22nd October 2009 REFERENCES 156 URL http en wikipedia org w index php title Usability amp oldid 321151468 Wikipedia User
84. blue when this is done e Back to Sticky widget mode F 5 F 3 USER EVALUATION Figure F 1 Description of the O button yy gt Sticky Widget Mode Select Sticky Widget 2 Select Sticky on change Task 1 1 Turn on the widget mode 2 Turn off the widget mode Task 2 1 Turn on the widget mode 2 Switch to the profile called Harald s Profile 3 Use PIN 71234 to log in 4 Switch back to the first profile 5 Turn off widget mode Task 3 1 Turn on the widget mode 2 Go to Sticky widget mode 3 Select the weather widget and make it sticky 4 Go to Harald s Profile and make the football score widget as sticky on change 5 Select a random third widget and make it sticky APPENDIX F USABILITY TESTING F 6 6 Go back to TV mode 7 Unstick the weather widget and go back to TV mode You have successfully finished this test Thank you for your cooperation F 7 F 4 Summary Questions F 4 SUMMARY QUESTIONS What is written in Halic in the table below are answers from the different test subjects This first page is the question scheme each test person got after finishing the tests Summary Questions e What do you feel about what you have seen e What was positive about the application e Imagine you had the opportunity to change one thing and one thing only in the application What would it be Do you have any other comments What widgets would be important for
85. by their functionality 2 4 3 Version Control Procedures We used Git as version control This is Digiboards system as they use it now It has both commando line interface with Git and a web based interface on http digiboards apps sourcerepo com redmine digiboards projects kpro2009 2 4 4 Literature References We used TRX s own BibT X for references using the Harvard style of ref erencing 2 5 Documentation of Project Work This section describes our meetings and the corresponding documents 2 5 1 Internal Project Meetings The group decided to have weekly meetings on Mondays from 08 00 09 00 Wednesdays from 12 00 12 30 and Thursdays from 10 00 10 30 The Monday meeting was be the main group meeting where we discussed the work done the previous week the status and the plan for next week The two other meetings was only short and informative so the project manager could be in control of the resources and where they were used In addition to the sched uled meetings the project manager decided when we needed any additional meetings 2 5 2 Supervisor Meetings We had weekly meetings with the supervisors on Thursdays from 09 15 10 00 The group delivered the meeting agenda and additional documents at least 24 hours before the meeting 13 2 6 QUALITY ASSURANCE QA 2 5 3 Customer Meetings We agreed with the customer to have meetings whenever we needed to clar ify things The frequency of the meetings was at least once
86. ce of the widgets can be changed based on profile This is not clearly shown in figures 2 to 7 but should still be possible Figure 2 Regular TV H 11 Figure 3 Default profile Figure 4 Enter PIN code ENTER PIN APPENDIX H FUNCTIONALITY DESCRIPTION H 12 Figure 5 The chosen profile jr WED sr THU erns FRI STE a Figure 6 Select sticky wideets H 13 Figure 7 Sticky widgets shown 10 APPENDIX H FUNCTIONALITY DESCRIPTION APPENDIX Email Conversations Here follows a mail conversation we had in the pursuit of the STi7109 mi crocontroller First mail from us to Silica This is the first mail we sent to Silica a customer of ST We introduced ourselves as a student group from NTNU 4th year computer science Then we described the project and our need for the evaluation board of STi7109 We asked which board we need and if Silica sells this If so how much does it cost and how long does it take to ship it From Morten Weel Johnsen mailto mortjohn stud ntnu no Sent 3 september 2009 10 54 To kpro2 idi ntnu no silica norway avnet com Subject STi7109 evaluation board Hei Vi er en studentgruppe ved NINU som gar 4 ret datateknikk Vi har i ar et kundestyrt prosjekt hvor vi skal utvikle for STi7109 Vi har problemer med finne evaluationboardet til denne chipen Hvilket evaluationboard er det vi trenger Selger dere dette evaluationboard
87. cenarios do not seem to have any missing parts it looks good for our system The following scenarios is about the two premium users Jane and John Doe They describe how they configure their profiles and a normal day of use 6 2 1 1 Edit Profiles John and Jane Doe are premium customers Thus they have a profile on Embelir s web portal They want to use this to create their own profiles Log In They log in using their username and password They are shown a list of the profiles they have and the widgets they have As of now the only widgets are the news feed and weather forecast that followed the default profile This is not very impressive so they go to Buy new widgets to choose some more Buy Widgets After browsing the widgets they decide on a sports result widget an international news feed the Facebook widget the Twitter widget and a clock widget Create Profile As of now there is only the default profile They click Create new profile to make their own First out is John He enters a profile name John s profile and adds the news feed and weather forecast He CHAPTER 6 SPRINT 2 DETAILED SYSTEM DESIGN 80 also adds the sports widget and the Twitter widget as well as the clock These are all placed after one another on a preview of the screen This looks messy so he uses the mouse to drag the widgets where he wants them As he watches a lot of football he makes sure that no widgets covers the normal spot for the resu
88. centered design Wikipedia The Free Encyclopedia 2009h Online accessed 22nd October 2009 URL http en wikipedia org w index php title Wikipedia Waterfall model Wikipedia The Free Encyclopedia 2009i Online accessed 8th October 2009 URL ss http en wikipedia org w index php title Waterfall_ model amp oldid 317339061 Wikipedia WebKit Wikipedia The Free Encyclopedia 2009 Online accessed 24th September 2009 URL http en wikipedia org w index php title WebKit amp oldid 315011864 Bibliography die net die net 1996 URL Jon Atle Gulla Reidar Conradi Jon Espen Ingvaldsen Steinar Hagen and Geir Solskinnsbakk Introduction to course TDT4290 Customer Driven Project 21 Aug 2009 Online accessed 25th August 2009 URL Thorsten Hansen The bibunits Package 12 May 2004 Online accessed Ath October 2009 URL Nicolas Markey Tame the BeaST The B to X of BibTRX 16 Oct 2005 Online accessed 4th October 2009 URL Wikipedia Wikipedia 2009 URL http wikipedia org 157 APPENDIX A Stakeholders The partners for this project would be the customer representatives the supervisors and the project group Customer Email list kpro2009 digiboards com Robin Skoglund Address Mellomveien 9 7042 Trondheim Phone 47 901 23 667 Email robin skoglund digiboards com Harald Amundsen Phone 47 991 61 028 Email harald amundsen digiboards com Supervisors Reidar
89. cessor CE 3100 which is newer fancier and not as common However what chip we chose depended more on which one we could get a hold on than how suited it was for the task We also discussed a third solution to get some poor hardware from Digiboards that we could use to develop something for the final presentation 3 7 1 Description of Alternative Microcontrollers The microcontrollers differ in many ways Here we describe each microcon troller focusing on hardware video streams graphics and available operat 39 3 7 ALTERNATIVE MICROCONTROLLERS ing systems 3 7 1 1 ST Micro STi7109 Single Chip Set Top Box IC ST Micro STi7109 Single Chip Set Top Box IC is a set top box microcon troller from the Italian French electronics and semiconductor manufacturer STMicroelectronics Description As stated in STMicroelectronics Data Brief 2006 the STi7109 is a high definition set top box DVD decoder chip based on the Omega2 STBus architecture It provides high performance for low cost high defi nition HD systems It includes both Windows Media Video 9 and H 264 video decoders supporting low bit rate applications It supports distribution of TV signals via digital terrestrial satellite cable DSL Digital Subscriber Line and IP Internet Protocol Hardware It has an embedded ST40 processor with the SuperH CPU core running at 266 MHz that is used for controlling the box and running ap plications It also has a dual DDR1 SDRAM in
90. ch Inter net applications 2009c Product information Online accessed 24th September 2009 URL http www adobe com products flex Len Bass Paul Clements and Rick Kazman Software Architecture in Prac tice 2nd ed Addison Wesley 2003 DVRLife 2006 Online accessed 15th October 2009 URL http www dvrlife com images tivo remote control gif Embelir Widgets on TV Sep 2009 Business plan Jesse James Garrett Ajax A New Approach to Web Applications 2005 Online accessed 24th September 2009 URL http www adaptivepath com ideas essays archives 000385 php Jon Atle Gulla Reidar Conradi Jon Espen Ingvaldsen Steinar Hagen and Geir Solskinnsbakk Introduction to course TDT4290 Customer Driven Project 21 Aug 2009 Online accessed 25th August 2009 URL 153 REFERENCES 154 IEEE 1471 Recommended Practice for Architectural Description of Software Intensive Systems Description 2000 Online accessed 27th October 2009 URL description se 1471 2000_desc html Intel Corporation Intel and Adobe to Extend Flash Platform to TVs 5 Jan 2009 Press release Online accessed 4th October 2009 URL http www intel com pressroom archive releases 20090105corp htm Intel Corporation Product Brief Intel R Media Processor CE 3100 Product Brief Intel Corporation 2008 Online accessed 4th October 2009 URL http www intelconsumerelectronics com Download CE 3100 aspx Philippe Kruchten Arc
91. correct PIN step 2 1 chooses to go to another profile start from step 1 again User enters correct PIN and continues to step 3 CHAPTER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN 70 Table 5 4 UCTV 3 Use Case UCTV 3 Description Choose sticky widget Requirements e F4 1 e F4 2 Actors e User Assumptions e Embelir s Internet on TV solution is installed e User has a remote control that is compatible with the system e The widget dock is already turned on Steps 1 User uses the up down buttons to select a widget 2 User presses the OK button 3 The selected widget will be marked as sticky 4 User presses W button 5 All the widgets disappear from the screen except for the sticky ones Variations 3 1 Choose more widgets to be sticky repeat from step 1 5 2 3 High Level Architecture The high level architecture is an overview of how the system will work After looking at the desired functionality of the system we found that we need to 71 5 2 SPRINT 1 RESULTS have a widget application a web content server and a configuration server These parts will be described in detail in the next sub chapters The archi tecture will be described in detail for the entire system but Digiboards will make the web application for the system so our main focus of the architecture will be on the widget application We are going to make a demonstration that will show how some of the widget a
92. d good feedback on our demo and things that needed to be improved for the ones who are going to implement the system We have also gone in depth for the architecture showing the logical view of the system and giving an idea of how the final system are going to be implemented We have taken into account that the most important require ment from the customer the usability of the system is emphasized The architecture in addition to the system design will be useful for the customer when they are going to implement the system They should be able to start with the implementation after looking at our documentation What we did not do was the web portal for the customers as this will be Digiboards domain Although this also need to be done in addition with our widget application to get the final system up and running The web portal will be for the premium customers Here it should be possible to configure the widgets adding more widgets creating profiles and changing the appearance and placement It will also be possible to secure profiles by adding a PIN code for access The default profile can also be 135 selected here These changes should be saved in a configuration server while the widgets and their contents are saved in a content server Whenever the user tries to load a widget the information about which widget should be presented is fetched from the configuration server and the widgets themselves and their content is fetched from th
93. d two meeting agenda templates one for the customer meetings and one for the supervisor meetings 2 4 1 3 Weekly Status Report for the Main Supervisor Meetings There is a template for the status report in status report tex 2 4 2 Standards This is the standards used for files and for the code in the demo 2 4 2 1 Organization of Files The files are organized in these directories report contains everything needed for the final report Here lies the report tex and all the phase files and appendices to be included Figures and images for the report are also here having a flat structure for easier compilation The BibTE X filed can be found here as well meeting agenda contains the subdirectories customer and supervisor each with the meeting agendas for their respective meetings minutes is also divided into the customer and supervisor subdirectories and these contain their respective minutes status report is divided into subdirectories named after the period of the status report templates contains the document templates and are divided into meeting agenda minutes phase documents random and status report Each direc tory contains its respective template workhours contains the tables for person hours IBibT Xis IAT Xs bibliography script language 11 2 4 TEMPLATES AND STANDARDS 2 4 2 2 Naming of Files The phase documents are named part_ lt short for phase name gt and the appendices are named app lt s
94. developers must decide what types of people they want in their show This are usually strongly connected to the concept For a talk show you might want the host to have certain personal qualities that fits with the concept When it comes to the informational TV shows doing research on the topic becomes a major part of the development research will probably be necessary in the other two types of TV shows as well but not to the same extent and putting together a research team becomes necessary The development of a TV show starts with someone having an idea and then developing this idea into a concept When the creator of a TV show has decided on the theme and the main plot he must start to create the main characters the environment and the background history of the characters After he is done developing he must find a TV stations that is willing to present his work At this stage he has typically only made one episode called the pilot which is used to see whether or not people like it If the pilot is appreciated the production of the rest of the show can begin 3 1 1 2 TV Stations Most larger TV stations have their own TV studio with recording equipment and produce some of their own content The content which most commonly is produced in house by a TV station is news weather forecasts talk shows and other local content Larger TV shows like TV series and documentaries are usually put out to a specialized production company Smaller TV st
95. e Planned Re planned Date Finished Planning 14 09 09 14 09 09 Prestudy 17 09 09 25 09 09 25 09 09 Product backlog 25 09 09 05 10 09 05 10 09 Pre delivery of project report 28 09 09 28 09 09 Sprint 1 15 10 09 07 10 09 07 10 09 Sprint 2 04 11 09 14 10 09 14 10 09 Sprint 3 21 10 09 21 10 09 Sprint 4 28 10 09 28 10 09 Sprint 5 04 11 09 05 11 09 Presentation and demonstration 19 11 09 19 11 09 2 2 2 8 Presentation and Demonstration Preparations of the presentation and demonstration of our project 2 2 3 Milestones We made milestones Table 2 1 to make sure every task was finished in reasonable time 2 2 4 Effort Budget We made an effort budget Appendix D Figure D 1 to keep track of the person work hours 2 3 Project Organization We organized the group into roles all with different responsibilities 2 3 1 Roles We had six roles which covered the most important responsibilities 2 3 1 1 Project Manager The project manager was in charge of the whole project He was responsible for writing the meeting agendas for the customer and supervisor meetings CHAPTER 2 PROJECT DIRECTIVE 8 and being the chairman during these meetings He was also responsible for people keeping the deadlines and for planning and coordination of the work 2 3 1 2 Technical Manager The technical manager was responsible for having an overview of the technical solutions both in the project and out on the market He was a
96. e content server To use the widgets from the TV one will need a remote control with in addition to normal remote control buttons like numeric buttons arrows and a select button a special widget button By pushing this button the widgets can be turned on and off Without access to the web portal this can be used to show the default widgets that are shipped with the system By using the numeric buttons the arrows and the select button the user can change between multiple profiles and set widgets from one or more of these profiles sticky That is when turning the widgets off the sticky widgets will still be shown Widgets can also be set as sticky on change These widgets will normally not be visible when the widgets are turned off but will be shown when their contents change For example when a new news feed has arrived or a football team has scored a goal We are satisfied with our project outcome Even though the project changed drastic we managed to set new goals We feel that we did this in a proper way and thus given Digiboards a complete system and architecture design Now they can easily start the implementation of the final system based on our documentation Digiboards will not implement the final system in Java but in Adobe AIR with Flex The fact that this will be implemented on a specific microcon troller might also affect the total effort The future work to reach the original goal is hard for us to give a prediction
97. e default profile e User has a controller that is compatible with the system e The widgets is in profile mode Steps 1 User uses the lt and buttons to flip through the different profiles 2 User presses the OK button or simply just do nothing for a couple of seconds 3 Widgets for the chosen profile appear on the screen Variations la 2 1 2 1 1 2 1 la 2 1 1b 2 1 2 User takes a short cut and enters his hers profile number by using the number buttons continue to step 2 User uses the number buttons to enter PIN User enters wrong PIN and gets another attempt to enter the correct PIN step 2 1 chooses to go to another profile start again from step 1 User enters correct PIN and continues to step 3 CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 108 Table 8 4 UCTV 3 Use Case UCTV 3 Description Sticky widgets Requirements e F4 1 e F4 2 Actors e User Assumptions e Embelir s Internet on TV solution is installed e User has a controller that is compatible with the system e The widgets in on and in profile mode Steps 1 User presses the OK button to get into sticky wid get mode 2 User uses the A W buttons to choose a widget 3 User presses the OK button to select the widget to be sticky 4 User presses the W button and all the widgets disappear from the screen except for the sticky one s Variations 3 1 3 1 1 3 2 3
98. e design This can also be met by more normal remote controls 6 2 3 2 TV with Widgets The TV Figure shows roughly how we visualize the widgets will look Here a clock and weather widget and a sports results widget is present CHAPTER 6 SPRINT 2 DETAILED SYSTEM DESIGN 84 Figure 6 3 Sketch of a Very Minimal Remote Control Figure 6 4 Sketch of a Television with Widgets 6 2 4 Architecture We have made some sequence diagrams showing the flow of information There is one for the cooperation between the set top box and the content 85 6 2 SPRINT 2 RESULTS server Figure 6 5 and one for the web portal and the config server and how this server cooperates with the set top box Figure 6 6 Figure 6 5 Sequence Diagram for Set Top Box a Loop get Vidgetst returnWidgets T gt tum off widgets Figure 6 6 Sequence Diagram for Web Portal I I login I newWidgetinfo CHAPTER 6 SPRINT 2 DETAILED SYSTEM DESIGN 86 6 2 5 Implementation In this sprint we implemented the most basic functionality of the widget application We displayed two widgets on the screen made them disappear and appear again by the stroke of a key We also implemented selection mode where the user can scroll through the different widgets and select them as sticky Sticky widgets remain visible when exiting widget mode The widget application now consisted of two cl
99. e of the text rather than on formatting commands die net LGPL GNU Lesser General Public License A free software license pub lished by the Free Software Foundation FSF Wikipedia MAC OS X A line of computer operating systems developed marketed and sold by Apple Inc and since 2002 has been included with all new Macintosh computer systems It is the successor to Mac OS 9 the final release of the classic Mac OS which had been Apple s primary operating system since 1984 Wikipedia MXML Magic eXtensible Markup Language A XML based user in terface markup language first introduced by Macromedia in March 2004 Adobe Systems which acquired Macromedia in December 2005 gives no official meaning for the acronym but some developers suggest it should stand for Magic eXtensible Markup Language Wikipedia Objective C A reflective object oriented programming language which adds Smalltalk style messaging to the C programming language Wikipedia PCRE Perl Compatible Regular Expressions A regular expression C library inspired by Perl s external interface written by Philip Hazel Wikipedia Product Backlog A high level document for a scrum project It con tains backlog items broad description of all required features wish list items etc prioritized by business value It is open and editable by anyone and contains rough estimates of both business value and development effort Wikipedia RAM Random Access
100. e profile to the right Harald s profile Log in with PIN 1234 Switch to profile no 1 HB co do E Switch through all the profiles F 1 3 Sticky Widgets The most advanced test Table F 3 is testing the ease of using the sticky widget functionality Table F 3 Sticky Widgets ID TSW Name Sticky widgets Description Using sticky widgets Tester Test Subject Date Pre requirements In widget mode Description Grade Go to sticky widget mode 1 2 Set the weather widget sticky 3 change Set the football widget on Harald s profile to sticky on Set another widget sticky oye Go to TV mode 6 Unstick the weather widget F 3 F 2 THE RIGHTS OF THE PARTICIPANTS F 2 The Rights of the Participants The following information was given to the participant as a summary of their rights as a participant Your Rights as a Participator e You are not a tool for the test itself you are here to test the solution e You are here of free will and can cancel the tests whenever you feel like If anything will be recorded you are the first to know e There will not be used any names or anything else that can connect you to this test in any reports or other public papers You are to be treated with respect Trondheim Sign here APPENDIX F USABILITY TESTING F 4 F 3 User Evalua
101. een 5 2 2 3 Change Widget Profile This use case Table explains how our solution solves the problem with having more than one profile The different profiles will be in a list the user The default profile is the profile that is already installed on users Internet on TV solution The user will have chosen what widgets he she wants on the profile The widgets can be local weather news sports updates stocks and other things For a really simple user it means he she does not have to learn anything more than how to turn this on and off 67 5 2 SPRINT 1 RESULTS can flip through with the lt and buttons and choose profile by pressing the OK button If the profile is PIN protected the user will be asked to enter the PIN using the number buttons If the PIN is correct widgets for the new profile will appear on the screen If not the user will get an error message and another attempt to enter correct PIN The user can also choose to go to a different profile 5 2 2 4 Choose Sticky Widget This use case Table explains how a user can make a widget sticky A sticky widget is a widget that sticks to the TV screen even when the user turns off the Widget Doc This widget will update itself on its content That means that if a user wants to stay updated on the weather while watching the game he she can simply make the weather widget sticky and continue watching the game without having to turn the Widget Doc on and off for an update
102. ers in the sense that widgets appear on the TV and not on the computer as some are used to Thus we need an easier solution since the remote control is the only way to interact with the system We have a limited number of buttons to use and it is important that they are used so that the system is as usable as possible We will have some general user test in this later but for the architectural part we will have usability scenarios which will describe the most important functionality of the system and then use this as a background for designing the architecture The overall architecture is already described in Sprint 1 but we will here go deeper into it and see how the architecture for the system will be like 8 2 4 1 Usability of the Architecture The goal is to achieve a system that is easy to learn and use To achieve high usability we will focus on visibility of system features consistent and 4Sticky on change means that the widget only appears when its content changes 111 8 2 SPRINT 4 RESULTS minimalistic design By using the principle of affordance all the selected sticky widgets will be marked as selected and feedback is given through ren dering a colored border around the widgets We will also use the gestalt principles through grouping of elements with similar attributes continuity of lines and use of similarity in shape and colors By use of constraints the user is forced to use the application in way which reduces the pro
103. esses the W button on the controller 2 Widgets for the default profile appears above the main TV picture this is now in profile mode 3 User presses the W button again and the widgets disappear from the screen CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 106 When a user is watching TV he she can easily press the W button and the widgets in the default profild will appear on the screen The user is now in profile mode which is a part of widget mode Figure 8 1 To turn off the widget mode the user simply presses the W button one more time and all the widgets disappear from the screen Because the user have already chosen most of the widgets he she wants displayed in the default profile the simple user does not really need to learn anything more than this use case 8 2 3 3 Change Profile This use case Table has a bit more functionality from the last version It is now possible to enter the profile number for the profile you want to go to instead of having to flip through all the other profiles to get there Also you do not have to push the OK button to load the profile to the screen it will automatically load itself after a pause of approximately a couple of seconds The use case explains our solution to having more than one profile on the system The different profiles can be flipped through with the lt and gt buttons The profile will automatically appear after a couple of seconds if there is no activity wit
104. et Hva koster denne chipen Hva er forventet leveringstid l 1 APPENDIX I EMAIL CONVERSATIONS l 2 Mvh Morten Weel Johnsen The answer from Silica Silica said we could risk problems with this micro controller as they were uncertain if it was for sale to end users They would contact ST and ask and then contact us again From Neerbye Kristoffer Silica Sent 3 september 2009 11 55 To mortjohn stud ntnu no Subject RE STi7109 evaluation board Morten Jeg er redd du kan fa problemer med denne chip en jeg er nemlig ikke sikker pa om den selges og supporteres direkte til vanlige sluttkunder Jeg skal sjekke med ST og sa sier jeg ifra til deg igjen Med vennlig hilsen Kristoffer Neerbye Field Application Engineer Silica An Avnet Company SILICA The Engineers of Distribution The final answer from ST ST answered that we are not allowed to use the microcontroller as it is for selected customers The microcontroller is not the only problem we also need the software licence the debuggers etc Eventually we will also need support which ST not has the capacity to give us So they suggest that we should turn to one of their partners Dato Thu 10 Sep 2009 09 11 12 0200 Fra Neerbye Kristoffer Silica lt Kristoffer Neerbye silica com gt Emne RE STi7109 evaluation board Til mortjohn stud ntnu no l 3 Hei Morten Beklager at det tok tid f svar p dette men som jeg antydet sist f r du
105. ett 2005 works like this most user actions in the interface trigger an HTTP request back to the web server The server after doing some process returns an HTML page to the client When the server is working user has to wait An Ajax application eliminates the start stop nature of interaction on the Web by introducing an intermediary the Ajax engine between the user and the server Instead of loading a web page at the start of a session the browser loads the Ajax engine written in JavaScript and usually tucked away in a hidden frame It is responsible for both rendering the interface that the user sees and communicating with the server on the user s behalf The Ajax engine allows the user s interaction with the application to happen asynchronously In this way the user never waits while the server is working Every user action that normally would generate an HTTP request takes the form of a typical JavaScript call to the Ajax engine instead Any response to a user action that does not require a trip back to the server such as simple data validation editing data in mem ory and some navigation the engine handles on its own If the engine needs something from the server in order to respond such as submitting data for processing loading additional interface code or retrieving new data the en gine makes those requests asynchronously usually using XML This without stalling a user s interaction with the application Strengths of Ajax e I
106. evelopment Kit WDK developers and publishers can quickly cre ate and deploy TV Widgets by leveraging a rich set of interfaces called the Widget Channel API The Widget Channel API provides access to popu lar Internet technologies such as Konfabulator JavaScript and XML and HTML The Yahoo Widget Engine and Widget Channel frameworks imple ment different levels of functionality from the Widget Channel API Yahoo TV Widgets are available at the moment only for several TV and set top box manufacturers like Sony Samsung LG AT amp T and TiVo Widgets that are possible to use depend on the model of TV or the set top box 3 4 SWOT Analysis SWOT analysis is a strategic planning used to evaluate strengths weaknesses opportunities and threats involved in a project or in a business venture The scope of this section is to identify the internal and external factors CHAPTER 3 PRELIMINARY STUDY 36 that are favorable and unfavorable to achieve the project objective Internal factors are usually classified as strengths S and weaknesses W while those external are classified as opportunities O and threats T There are SWOT analysis of the widget channel Figure 3 6 This SWOT analysis shows that there are competitors so our system needs something special to stand out Sticky widgets can do the trick It is also a possibility to take the place as the market leader and things in this area happens fast Widgets are not available for all c
107. everyone had to work approximately 15 hours more this week We had set a new date that we could work together in addition to the usual days The rest we would hope was going to be work at home This seemed to be hard to manage and we decided midways in the sprint that we would add a last sprint to meet the customer expectation of having usability tests and also to reduce the effort hours for this sprint Having planned to have a Sprint 5 the workload on Sprint 4 turned out to be acceptable although we were not able to reach the goals of Sprint 4 concerning the implementation After the Sprint 3 review meeting with the customer we got feedback from the customer on the demo The customer wanted to apply for a patent with the sticky version so we had to spend some of the time that we estimated for the sprint on this task We extracted our project report into a short summary that the customer could use for the patent application We also had to edit and make new use cases for the application CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 120 We wrote some user tests that we will be using in Sprint 5 We fin ished architectural parts that were not done in the previous sprints On the implementation part we continued working on our demo by extending some functionality and adding extra widgets This will be nice for the presentation Positive e The group worked well e Divided the different tasks in a good way e No sickness Negative e Sprint
108. ew paxiel 4JeHpIMy u sou2 op luo4id JU3LIN gt 4 JO SISHPIM e MOUS pau yabptm NITIS prow 2a5pra qndur Josn Jo weIgerp 94849 ams APPENDIX H FUNCTIONALITY DESCRIPTION 2 2 Modes There are two main modes and three sub modes in which the buttons have separate meaning The main modes are TV mode and widget mode Widget mode is again separated into sticky widget mode and profile mode PIN mode is yet another sub mode of profile mode 2 2 1 TV mode When you turn on the TV you are in the TV mode Here the television works as normal The only special thing is the W button which is not normally there 2 2 2 Widget mode Pushing the W button you are taken to the widget mode Here most of the buttons works as normal except the numeric buttons and the navigation panel the arrays and the OK button The W button takes you back to the TV mode In widget mode lt and gt are used to switch profile in addition to the numeric buttons Pushing the numeric buttons will take you directly to the profile which number you entered It is pretty much the same as changing the TV channel only for profiles 2 2 3 Profile mode Profile mode is the default mode when in widget mode Here the widgets of the current profile are shown as normal The special button for profile mode is the OK button This will take you to sticky widget mode 2 2 4 Sticky widget mode In sticky widget mode the A and Y buttons are used for sc
109. ext period Ach IMSS Shite Bas Bm Arey Aes a a a a tea Ee Gey X 4 2 Activities megas ae La eae A ee aa ba S 5 Other 1 Summary 2 Work done in this period 2 1 Status of the documents that are being created 2 2 Meetings 2 3 Other activities 3 Problems what is interfering with the progress or taking resources 4 Planning of work for the next period 4 1 Meetings 4 2 Activities 5 Other APPENDIX G TEMPLATES G 10 APPENDIX H Functionality Description As Digiboards wanted to apply for a patent regarding the sticky widget functionality they needed an up to date description of the functionality for the application Following is the document we sent them for use in the application We also sent them the use cases regarding the television H 1 APPENDIX H FUNCTIONALITY DESCRIPTION H 2 Embelir Internet on TV Functionality description TDT4290 Customer Driven Project Group 2 12th November 2009 Abstract This document is a description of the functionality of Digiboards AS widget system as of 12th November 2009 according to the design of group 2 in TDT4290 Customer Driven Project IDI NTNU The system is divided into two parts First there is the TV inter face This contains the use of the system the collaboration between the remote control and the system as shown on the television Second there is the web portal http www embelir com This is where the user configures the system by adding profiles
110. final system must implement not what our project must implement The requirements are divided in two ways First in category like Profile and Widget Secondly in Remote control and TV and Web portal This describes where it shall be possible to perform the task 49 CHAPTER 4 REQUIREMENT SPECIFICATION AND BACKLOG Table 4 1 Functional Requirements Priority Description Fl Widget Mode REMOTE CONTROL AND TV F1 1 High Change between widget mode and TV mode F2 Profiles REMOTE CONTROL AND TV F2 1 High Change current profile WEB PORTAL F2 2 High Add new profile F2 3 High Edit profile F2 4 High Delete profile F2 5 Medium Set default profile F2 6 Medium Secure profile F3 Widgets REMOTE CONTROL AND TV F3 1 High Make widgets visible WEB PORTAL F3 2 High Add new widgets to profiles F3 3 Medium Change placement of widgets F3 4 Low Change appearance of widgets F4 Sticky Widgets REMOTE CONTROL AND TV F4 1 High Allow sticky widgets visible in TV mode F4 2 Medium Set multiple sticky widgets WEB PORTAL F4 3 Low Change placement of sticky widgets 50 51 4 2 PRODUCT BACKLOG 4 1 2 Final System Requirements The final system requirements Table 4 2 are the requirements the final system must implement not what our project must implement The requirements are divided into set top box and web server Table 4 2 Final
111. g TV Widgets from different profiles can be sticky at the same time It is also possible to let the widgets be visible only when their content change Our work helped Digiboards to get a patent pending and will be used in the future as a help for the implementation of the actual system This system will be implemented using Adobe AIR which means our prototype in Java is only shows the proof of concept Despite this we believe our design will be helpful when making the final system as user friendly as possible vii viii Short Chapter Chapter Chapter Chapter Chapter Chapter Chapter Chapter Chapter Chapter Chapter Table of Contents 1 Introduction g 5 Sprint 1 High Level System Design a ANA o E 0l 1 21 2 je S S5 lo BL IB 16 olle 5 5 EIS Bil I lt li Si wn 4 S Dl sS lt oO Qi Lo 2 L lt Eh b O 5 v 5 e us D A O print 2 Detailed System Design UN print 3 Implementation Part I print 4 Implementation Part I o Q WM print 5 Usability Testing 10 Conclusion 11 S Q z v a Bibliography Appendix A Stakeholders Appendix B Concrete Plan Appendix C Risk Analysis 17 49 55 77 89 99 123 133 137 152 156 157 A 1 B 1 C 1 Appendix D D 1 Appendix E E 1 Appendix F F 1 Appendix G G 1 Appendix H H 1 Appendix I I 1 Contents Chapter 1 Introduct
112. ge Web based information broadcasting on digital screens Wikipedia DOM Document Object Model A cross platform and language independent convention for representing and interacting with objects in HTML XHTML and XML documents Aspects of the DOM such as its El ements may be addressed and manipulated within the syntax of the programming language in use The public interface of a DOM are specified in its Application Programming Interface API Wikipedia DRAM Dynamic Random Access Memory A type of semiconductor memory in which the information is stored in capacitors on a MOS integrated circuit Typically each bit is stored as an amount of electrical charge in a storage cell consisting of a capacitor and a transistor Due to leakage the capacitor discharges gradually and the memory cell loses the information Therefore to preserve the information the memory has to be refreshed periodically Despite this inconvenience the DRAM is a very popular memory technology because of its high density and consequent low price die net DVI Digital Visual Interface A high quality video interface for digital displays Wikipedia ECMAScript A scripting language standardized by Ecma International in the ECMA 262 specification and ISO IEC 16262 The language is widely used on the web especially in the form of its three best known dialects JavaScript ActionScript and JScript Wikipedia Facebook A global social networking website that is
113. h Having to run the tests on a mac or computer the user often believed they could use the mouse pad or typical other buttons This was a problem during the test and we continually had to repeat that the only buttons being allowed to use were the ones stated in the manual This will of course not be a problem with the real end product as for it can be tested on a television with the remote control All over our customer seemed satisfied with the results hence of course we are too We believe the usability testing have improved our end product and hopefully a good help for our customer Even though our demo is an early stage of the product it will more or less look the same as the final TV application our customer makes By completing the tests we gained valuable information that will help the customer in the process of making of the real product That being said the test also strengthens our demo which in the end gives more value to our customer as they tend to use it for presenting the idea All in all we are satisfied with the usability tests the results and believe it became a part of the core of our project 129 9 2 SPRINT 5 RESULTS Table 9 3 Second Usability Test Person What do What If you Which Other you feel was pos could widgets com about itive change were im ments what about the one portant you have applica thing to you seen tion what would it be Male Cool thing I can see I don t
114. h the buttons but the user can also press the OK button to make the profile appear right away If the user knows the number of his her profile he she can choose to simply enter the number using the number buttons and the profile with that number will appear on the screen If the profile is PIN protected the user will be asked to enter the PIN using the number buttons If the PIN is correct the widgets for the new profile will appear on the screen If not the user will get an error message and another attempt to enter correct PIN If the user does not remember the PIN he she can choose to go to a different profile by doing all the steps one more time 8 2 3 4 Sticky Widgets In this use case Table 8 4 almost everything is changed The sticky on change is a new feature the customer wanted and we had to alter pretty The default profile is a profile already installed when the users gets the Internet on TV solution Typically the user will have chosen what widgets he she wants in the profile The widgets can be local weather news sports updates and stocks among other things 2The user can also go to http www embelir com to retrieve the PIN 107 8 2 SPRINT 4 RESULTS Table 8 3 UCTV 2 Use Case UCTV 2 Description Change widget profile Requirements e F2 1 Actors e User Assumptions e Embelir s Internet on TV solution is installed e The user has at least one widget profile in addition to th
115. has been improved with many new fea tures and greatly improved performance On June 2 2008 the WebKit project announced they rewrote JavaScriptCore as SquirrelFish a byte code interpreter The project evolved into SquirrelFish Extreme abbreviated SFX marketed as Nitro announced on September 18 2008 which compiles JavaScript into native machine code eliminating the need for a byte code interpreter and thus speeding up JavaScript execution Drosera A JavaScript debugger that was included with the nightly builds of WebKit It was named after Drosera a genius of carnivorous plants i e bug eaters Drosera has been replaced by the inclusion of debugging functionality in the Web Inspector SunSpider A benchmark suite that aims to measure JavaScript perfor mance on tasks that are relevant to the current and near future use of JavaScript in the real world such as screen drawing encryption and text manipulation The suite further attempts to be balanced and sta tistically sound It was released by Apple s WebKit team in December CHAPTER 3 PRELIMINARY STUDY 30 2007 It was well received and other browser developers also use it to compare the JavaScript performance of different browsers 3 1 3 Software Architecture The software architecture Bass Clements and Kazman 2003 of a program or computing system is the structure of the system which compromise soft ware elements the externally visible properties of those elements
116. he AIR runtime includes the open source 23 3 1 BACKGROUND INFORMATION WebKit HTML renderer which is used to display web content in applications This makes it possible to build entire AIR programs using standards based web technologies and the same techniques that one would use to build a web site Developers can also use AIR to deploy Adobe Flex programs which are created with ActionScript and an XML based user interface language Use of HTML obviously provides a high level of flexibility for user interface design Adobe AIR supports Adobe Flash 10 and it is available for the operating systems in Table 3 1 2 2 Adobe Flash Adobe Flash Adobe Systems Incorporated 2009b Wikipedia 2009a is a multimedia platform created by Macromedia and currently developed and distributed by Adobe Systems Flash has become a popular method for adding animation and interactivity to web pages Flash is commonly used to create animation advertisements and various web page Flash components to integrate video into web pages More recently it is also used to develop Rich Internet Applications Flash can manipulate vectors raster graphics and supports bidirectional streaming of audio and video In particular the last version Flash 10 includes H 264 video support and does not require the client to install any extra software Initially focused on animation early versions of Flash content offered few interactivity features and thus had very limited scripting c
117. he criterion Each grade is given a number for easier calculation 3 7 3 3 Criteria The most important criteria for the choice of microcontroller are EC1 Support for Adobe AIR CHAPTER 3 PRELIMINARY STUDY EC2 Support for Adobe Flash EC3 3D acceleration 3 7 3 4 Evaluation of Possible Solutions Table 3 6 Evaluation of STi7109 Criterion Priority Grade Comment EC1 H B Because of the architecture Adobe AIR is a distant dream with a small hope for success EC2 M B There is a little better chance that Adobe Flash will work but the ar chitecture is still wrong EC3 M D It seems the chip has only got 2D acceleration but that is better than nothing Table 3 7 Evaluation of CE 3100 Criterion Priority Grade Comment EC1 H D Adobe Flash Lite is supported so it is a very good chance it will work EC2 M G As Adobe Flash Lite is supported there is acceptable amounts of work ing Flash support EC3 M G 3D acceleration is supported as well ass industry standard graphics APIs Table 3 8 Evaluation Criterion Priority STi7109 CE 3100 EC1 H 0 10 EC2 M 0 15 EC3 M 6 15 Sum 6 AO 45 3 8 ALTERNATIVE LIFE CYCLE MODELS We evaluated each microcontroller according to the specified criteria their priority and give the microcontroller a grade per criterion This was to help us find the best
118. he interaction with CHAPTER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN 72 the end use r and communicate with the content and configuration server To get content from the content server there will be need for pull functions so that the application can ask for updated information from the content server The application also needs to be connected to the configuration server and thus get the different user profiles and widgets that the user requests The architecture with class diagrams state diagrams and flow diagrams will be described in more detail in later chapters 5 2 3 2 Content Server The content servers main functionality is to provide the content for the wid gets from the Internet The reason to have a content server is to have the possibility of offering the widgets a standardized interface to fetch the in formation that the widgets need so that if the source of data change you will not need to change the server or neither the widget itself The content server will have the widgets available so that when you have configured your configuration server and added widgets the widget application will download the widgets that is needed to the widget application STB The content server will be able to push through information when there is need for it For example a live score widget will be needed to push infor mation from the content server whenever there is a goal This is not always necessary so for other widget it is sufficient that
119. he progress or taking resources d Planning of work for the next period i Meetings ii Activities e Other 5 Review approval of attached phase documents 6 Other issues APPENDIX G TEMPLATES Minutes from Group 2 Referent November 18 2009 Room ITV 242 Date Thu 27 August 2009 Time 09 00 10 00 Attendants Reidar Conradi IDI Snorre Gylterud IDI Alessandro Boron Ane Min Hofplass Garnaas Lars Martin Riiser Haraldsen Morten Weel Johnsen Tiril Anette Langfeldt Redland Jarle Erdal Steinsland Agenda 1 2 3 4 Approval of agenda Approval of minutes of meeting from last advisory meeting Comments to the minutes from last customer meeting of other meetings Approval of the status report a Summary b Work done in this period i Status of the documents that are being created ii Meetings iii Other activities c Problems what is interfering with the progress or taking resources G 6 d Planning of work for the next period i Meetings ii Activities e Other 5 Review approval of attached phase documents 6 Other issues APPENDIX G TEMPLATES Status Report Group 2 August 26 2009 Contents 1 Summary 2 Work done in this period 2 1 Status of the documents that are being created 2 12 Meets aa ke to EA t ys 2 3 Other activities 2 suasana a ee 3 Problems what is interfering with the progress or taking re sources 4 Planning of work for the n
120. he same visions as the customer It was also a very nice opportunity for the group to show what we had worked on and get feedback from the customer This assured that we were on the right track During the sprints new requirements arose from the customer and these were taken into consideration In Sprint 3 the customer told us that they wanted a running demo of the system to show for their customer meeting with Lyse This led to more focus on the implementation in Sprint 3 and some of the other features in the product backlog were postponed In addition they wanted to use our demo for a meeting in Finland The demo has already shown to be a nice way for the customer to show off their main vision for the widget system as a proof of concept At the Sprint 4 meeting with the customer they stated that they would like to apply for a patent regarding the sticky feature of the application as this differs from the other competitor s solution We helped Digiboards a lot in this process by providing them a summary of the functionality of the system including use case diagrams and state diagram The application for patent that Digiboards delivered were based upon the documentation that we gave to them During Sprint 4 we decided to add a fifth sprint to have time for usability testing of our demo The usability tests gave us good feedback and will be useful for Digiboards to take into account when they implement the final solution We as a group also receive
121. he system was to run on a certain hardware according to the customer s criteria We designed and implemented a demo having the basic operations that shows the proof of concept All in all the project would by research identify a user friendly solution for interaction with the TV viewer This report consists of 11 chapters After the introduction follows the project directive the preliminary study the requirement specification fol lowed by the conclusion and the project evaluation CHAPTER 1 INTRODUCTION 2 Chapter 1 Introduction Chapter 2 Project Directive Chapter 3 Preliminary Study Chapter 4 Requirement Specification and Backlog Chapter 5 Sprint 1 High Level System Design basic architecture and functionality description Chapter 6 Sprint 2 Detailed System Design scenarios some more use cases architectural details and the start of the implementation Chapter 7 Sprint 3 Implementation Part I updated functionality de scription and more implementation details Chapter 8 Sprint 4 Implementation Part II updated functionality description more architecture and usability Chapter 9 Sprint 5 Usability Testing the usability tests Chapter 10 Conclusion Chapter 11 Evaluation CHAPTER 2 Project Directive This chapter documents the results of the planning phase It specifies the project mandate project plan and describes the project boundary as well as various administrative aspects of
122. hitectural Blueprints The 4 1 View Model of Software Architecture 1995 Online accessed 27th October 2009 URL http www cs ubc ca gregor teaching papers 4 lview architecture pd Ryan Paul First look breathe in the Adobe AIR 2008 Online accessed 24th September 2009 URL http arstechnica com o1d content 2008 03 first look breathe in the air ars Ben Shneiderman Shneiderman s Eight Golden Rules of Interface Design 2004 Online accessed 22nd October 2009 URL http faculty washington edu jtenenbg courses 360 04 sessions schneidermanGoldenRules html Ben Shneiderman and Catherine Plaisant Designing the User Interface Strategies for Effective Human Computer Interaction 4th ed Addison Wesley 2004 STMicroelectronics Data Brief Low cost HDTV set top box decoder for H 264 and Microsoft WMA9 STMicroelectronics 2006 Online accessed 4th October 2009 URL http www st com stonline products literature bd 11660 pdf Sun Microsystems How to Create Translucent and Shaped Windows 2009 Online accessed 8th October 2009 155 REFERENCES URL http java sun com docs books tutorial uiswing misc trans_shaped_windows html Kelly Waters How to Implement Scrum in 10 Easy Steps 2007 Online accessed 30th September 2009 URL http www agile software development com 2007 09 how to implement scrum in 10 easy steps html WebKit 2009 Project homepage Online accessed 24th Septem
123. hitecture and perform the usability tests 9 1 1 Sprint Backlog The tasks to be performed this sprint are together with the customer chosen from the product backlog Table and copied into the sprint backlog Table 9 1 9 2 Sprint 5 Results The sprint results are the internal documentation of the work this sprint Code is not included 123 CHAPTER 9 SPRINT 5 USABILITY TESTING 124 Table 9 1 Sprint 5 Backlog Item Description Est Responsible Assigned Effort Mem bers 3 ARCHITECTURE 3 3 Process View 12 mortjohn mortjohn 3 4 Physical View 12 mortjohn mortjohn 4 IMPLEMENTATION 4 1 Mock Up 48 jarleerd jarleerd boron 4 1 1 Widget window 24 jarleerd jarleerd 4 1 2 Widget content 24 boron boron 5 USABILITY 5 1 Usability Testing 32 larsmaha larsmaha garnaas 5 1 3 Execution of test 16 larsmaha larsmaha garnaas 5 1 4 Evaluation 16 larsmaha larsmaha garnaas SUM 104 125 9 2 SPRINT 5 RESULTS 9 2 1 Usability Testing Having consulted with the supervisors and our customer we decided to exe cute user testing to improve our final product 9 2 1 1 Participants Rights For the tests we wrote a few tasks we wanted the test subjects to complete They are of course given full immunity and will not be mentioned by name in our report We also gave all our test subjects a contract in which they had to sign giving us an insurance that
124. hort for appendix name gt 2 4 2 3 Coding Style In this section we describe the standards used for programming in detail how we labeled structured and commented the source code Code Naming It was very important to use variable names that made it easy to understand what this entity was used for For naming classes variables and methods we used the following style e Written in English e A class name starts with a capital letter If the class name consists of more than one word every sequent word starts with a capital letter Listing 2 1 e Variable and method names start with lower case letter If variable and method names consist of more than one word every sequent word starts with a capital letter Listing 2 2 e Method names are assigned after the method body is written Listing 2 1 Class Definition public abstract class Widget extends JFrame public static int globalWidgetID 0 protected int id Listing 2 2 Method Definition public interface ObserverInterface public void updateObserver The part is because the phase documents separates the document into parts CHAPTER 2 PROJECT DIRECTIVE 12 Code Structure The programming language used is object oriented A class represents an abstract type of data the state and the behavior of this abstract data is specified respectively by variables and methods This mean ing the software consists of several classes divided
125. i ntnu no at least 24 hours before the meeting with information about e Date time and location for the meeting e Agenda for the meeting e Any documents that the customer should have before the meeting started The meetings were set up by the customer contact CHAPTER 2 PROJECT DIRECTIVE 16 2 6 4 2 Minutes of a Customer Meeting The minutes Appendix G were to be delivered within 24 hours The secre tary sent an email with the minutes to the kpro2 mailing list If the group approved it the document was sent to the customer for comments 2 6 4 3 Calling for Weekly Advisory Meeting with the Supervisors Each week on Thursday morning at 09 00 in room 242 of the IT building we had a meeting with the supervisors Here we discussed the situation of the project all problems that came up and received feedback on the documents An email Appendix G was sent to the supervisors every Tuesday after noon before the meeting with information about e Date time and location for the meeting e Agenda for the meeting e Any documents that the supervisors should have before the meeting started The meeting was set up by the project manager 2 6 4 4 Minutes of the Weekly Meeting with the Supervisors The secretary sent an email with the minutes Appendix from the cus tomer meetings to the kpro2 mailing list If the group approve it the docu ment was delivered to the supervisors so we could receive feedback CHAPTER 3 Pre
126. ical place to have a widget so it is recommended to drag each widget to a more preferable spot Here one can also edit the existing profiles as well as deleting them One can also set a new profile as default 4 4 Customization It should be possible to change the appearance of the profile s widgets On the web portal one can choose between several themes with different back grounds and colors It should also be possible to create your own themes and sell these in the widget store 4 5 Changing profile By using the lt and buttons the user can change the profile It will slide through the profiles loading the widgets as we move along When it gets to a password protected profile it asks for a PIN code This is entered through the numeric buttons and the OK button when the code is finished If correct it loads the profile If not it asks for a PIN again If this is not the profile you are trying to open just scroll to next profile with lt or One can also change profile using the numeric buttons almost as changing the channel Each profile will have its own number and one can jump directly to a given profile by entering the number on the numeric buttons This is very practical given many profiles This will only work outside of PIN mode One can change profile both in profile mode and in sticky widget mode As the state diagram figure 1 shows the method is the same The difference is where one is taken afterwards
127. idu told it ally was not allowed I can see the use of this but I do not know if it is anything for me Continued on next page APPENDIX F USABILITY TESTING F 10 Person What do What If you What Other you feel was pos could widgets Com about itive change were im ments what about one portant you have the situa thing to you seen tion What would it be Female I didn t Internet Make it News No sorry 30 40 under on TV in more inter weather mediocre stand itself is a esting and were nice techno every nice idea add more logical thing But Don t images skills it looked think I nice would use it though APPENDIX G Templates Here are the templates used in correlation with the meetings First are the meeting agendas both for the supervisor meetings and the customer meet ings Then follows a template for meeting minutes which is used for both supervisor and customer meetings Finally is the status report delivered to the supervisor on our meetings G 1 APPENDIX G TEMPLATES G 2 Meeting Agenda Group 2 October 15 2009 Room R01 Date 01 01 2009 Time 00 00 Phone numbers Alessandro Boron 45 01 95 32 Ane Min Hofplass Garnaas 98 07 42 35 Lars Martin Riiser Haraldsen 45 40 57 64 Morten Weel Johnsen 45 03 33 46 Tiril Anette Langfeldt R dland 99 64 52 85 Jarle Erdal Steinsland 93 81 35 63
128. ime Negative e The usability test was done too late e Implementation should be finished earlier 9 3 1 Conclusion In Sprint 5 we had some problems with the demo not being finished after Sprint 4 hence we had to use more time to finish the implementation This should have been avoided so that we could have the usability tests earlier in the project We needed to reschedule the usability tests and also extend the sprint by one day to get the usability tests within this sprint CHAPTER 9 SPRINT 5 USABILITY TESTING Burn down chart Sprint 5 Figure 9 1 Sprint 5 Burn Down Chart Burned down Balance Daily Weekday Day Planned Actual Planned Actual Completed 0 104 104 HN A Wed 1 36 24 68 80 24 Thur 2 36 36 32 44 36 Fri 3 0 0 32 44 0 Sat 4 0 0 32 44 0 Sun 5 0 0 32 44 0 Mon 6 12 6 20 38 6 Tue 7 20 12 0 26 12 120 100 80 60 Planned Actual 40 20 0 1 2 4 5 6 y 132 CHAPTER 10 Conclusion The original assignment given by Digiboards was based on the group getting the ST microcontroller This turned out to be impossible for us as a student group to get hold of as we did not meet the requirements from ST The microcontroller was only for selected partners but we hoped that Digi boards would get the deal with Lyse so we could get equipment from them An alternative for the ST microcontroller was the microcontroller from Intel We got in contact with a re
129. imes did not work at all To try and reduce the effect of this we changed the way we made the widgets appear and disappear We also finished the development of the football widget and started to integrate that into the rest of the demo The widget application took it s final form in this sprint From an external point of view not that much changed from the previous sprint We added the FootballWidget class and the RemoteControllerInputHandler class but most of the changes happened internally in the different classes To account for the change in behavior almost all of the methods needed some change This lead to many new bugs and unwanted behavior that took a lot of time sorting out Figure 8 8 Sprint 4 Demo Class PassCodeBox text JTextField frame JFrame label JLabel profiles ArrayList lt WidgetProfile gt getContent String main String updateContent String removeContent RemoteControllinputHandler id int widgets ArrayList lt Widget gt pinProtected boolean getWidgets ArrayList lt Widget gt setSticky boolean setWidgetsVisibility boolean setSelected boolean checkPin String adjustVisibility boolean FootballWidget WeatherWidgetGUI OtherWidgetGUI 119 8 3 SPRINT 4 EVALUATION To minimize the use of the private class from AWTUtilities we stopped setting widgets opacity to zero to make them disappear and in stead changed their visibility This however caused problems with the applicatio
130. ion 1 Chapter 2 3 A ee eee ee Be E 3 2 1 1 Overview 0 0 00000000 ee 3 So ee ee ety a eee reese eee os 3 A Sum oe Aho A 3 2 1 4 _Stakeholders 4 lass sasam 1 usss s ay eae A A og ye Ge 4 2 2 1 Phases 5 2 2 2 Man Tasks _ _ 5 2 2 3 Milestones 2 e 7 2 2 4 Effort Budget 2 4 4 a 20 2a eee oe Bes 7 uk ta he Gis a end Ge Sede eo X kus 7 231 R le sis S x Ro RY Am Re wm a EL wa 7 ae Pak a Ss ee Bae en 8 bt Baas ee aod se S os ae 9 og Gere eas a ee e 9 24 1 Templates 2 2 26 amp 2 508 eS ow Mee ew bk 9 2 4 2 Standards e 10 2 4 3 Version Control Procedures 12 2 4 4 Literature References 12 2 5 Documentation of Project Work 12 2 5 1 Internal Project Meetings 12 A ee a eee do e 12 Dee ee ee ad a 13 A a Gee es ee 13 2 6 Quality Assurance OAM jv ete bw dk ae ee ee eS 13 xi 2 6 1 Defining Quality testa So me ee es 13 Lid Be Sue eee ee ee 14 2 6 3 Routines for Producing Quality 14 da a Boe 15 Chapter 3 17 Pan aa te a dd ee 17 3 1 1 An Overview of the Television Industry 17 3 1 2 Technologies Concerning our Original Assignment 20 3 13 Software Architecturel 30 3 2 The Situation and Solutions of Today 31 3 2 1 Internet on TV as of Today
131. is and to remove a few other bugs before the usability tests were performed The bug were the opacity of the widgets are not set properly in selection mode still sometimes occur However we discovered that this only happens when the demo is run on a computer running Windows XP with only 1 GB of RAM We do not know why this is happening and have not been able to resolve it but we have notified our customer about this and they do not consider this to be an issue In larger software development projects unit and integration testing are usually used to find these kind of bugs This being a demo which is never to be used in any form of production environment however both we and our customer felt that it would be unnecessary to do any formal unit tests or integration testing Although no formal testing was done we have during the development performed manual tests whenever a new feature was added or something was changed to ensure that it still was working as expected It was during one of these manual test of the functionality that we discovered these last bugs that needed to be sorted out before the usability tests The reason for them not being discovered before this sprint and thus forcing us to postpone the usability test a little is that the demo was not completed until the very end of the last sprint After the first usability test we made two minor changes based on the feedback we got from the test persons The first change was that we added a
132. is her own effort hours during the week and update this on an online spreadsheet 15 2 6 QUALITY ASSURANCE QA 2 6 3 2 Routines for Approval of Phase Documents Each group member agreed with the following routine for approving the documents The project manager set the deadlines and assigned different parts of the phase documents to each member according to the project plan If a member of the group had any problem for example meeting a deadline he she was to contact the project manager as soon as possible Each group member worked with the task assigned according to the given deadlines When a group member finished his her work he she would commit it to the Git repository The document was sent to the document manager that assembled the parts and created the finished phase documents The assembled document had to be read by all group members before the internal meetings and feedback were given After evaluation of the feed back it was sent by email to the supervisor the assistant supervisor and the customer for approval and comments 2 6 4 Routines for Minutes and Meetings This section explains the routines for minutes and meetings with both the customer and the supervisors 2 6 4 1 Calling for a Meeting with a Customer Meetings with the customer were arranged when we needed to discuss the status of the project or problems regarding it An email Appendix G was sent to the customer and the kpro2 mailing list kpro2 id
133. ites in addition to license their content to the other distributors When the content from a TV station has been transferred to the end consumer the signal must be converted into something that can be displayed on a TV Hence the top set box A top set box is a box that is placed between the signal source from your distributor and your TV It converts the signal that is received into moving images that can be displayed on the TV In addition the top set boxes usually also provide extra features like electronic program guides EPG Internet browsing recording and video on demand VoD Because of most distributors infrastructure are closed lie digital television delivered over a packet switched network using the Internet protocol CHAPTER 3 PRELIMINARY STUDY 20 networks they usually require that you use their set top boxes for connecting to their infrastructure These boxes are usually from a major vendor which specializes in producing set top boxes that have been re branded and adapted for use in the distributors network When you sign up for a subscription they will either sell or rent you the set top box you will need to connect to their infrastructure 3 1 2 Technologies Concerning our Original Assignment The scope of this section is to analyze technologies that help the development process According to the customer requirements our attention is focused on Adobe products such as Air and technologies that are possible to use w
134. ith it such as Flash Flex and Ajax There is also a description of WebKit the HTML renderer that Adobe Air use to display web content in applications As the focus of the project changed we did not actually use any of these technologies It will however be used in the actual system which will be implemented by Digiboards 3 1 2 1 Adobe AIR Adobe R Integrated Runtime AIR Adobe Systems Incorporated 2009a Paul 2008 is a cross operating system runtime nicknamed Apollo that lets developers combine HTML Ajax Adobe Flash and Adobe Flex technolo gies This can be used to deploy Rich Internet Applications RIAs on the desktop AIR is a browser less runtime environment that complements the browser by providing the same application development and deployment ben efits while adding desktop integration local data access and so on Browser deployed applications however are more limited in where and how data can be accessed and stored More info in Table Table 3 1 Rich Internet Application Browser vs Desktop Feature RIAs in the Browser RIAs on the Desktop Application Applications can be eas Installed applications delivery ily discovered explored have more persistence and used power and functionality Installation No application installa Applications install tion is necessary seamlessly from the browser or download and install like a traditional desktop application Continued on next p
135. ith the global community to establish International standards for client and server protocols that enable on line commerce and communications on the Internet It also produces reference software die net WBS Work Breakdown Structure A tool used to define and group a project s discrete work tasks in a way that helps organize and define the total scope of work for the project Wikipedia WDK Widget Development Kit A set of API for developing widgets Widget In graphical user interfaces a combination of a graphic symbol and some program code to perform a specific function E g a scroll bar or button Windowing systems usually provide widget libraries containing commonly used widgets drawn in a certain style and with consistent behavior die net Widget Dock A dock that shows the available widgets XHR XMLHttpRequest A DOM API that can be used inside a web browser scripting language such as JavaScript to send an HTTP or an HTTPS request directly to a web server and load the server response data directly back into the scripting language Once the data is within the scripting language it is available as both an XML document if the response was valid XML markup and as plain text Wikipedia XHTML eXtensible Hyper Text Markup Language A family of XML markup languages that mirror or extend versions of the widely used Hy per Text Markup Language HTML the language in which web pages are written Wikipedia XML eXtensible Mark
136. iving their final sticky placement We plan to have a setup of default placements to be changed on the web portal That is shall they start in the upper left corner and go down start in the upper left and go right or start somewhere else and go in a specific direction Global Buttons The buttons are more or less the same where ever we are W changes between widget mode and TV mode lt gt and the numeric buttons are only accessible in widget mode but in both profile mode and sticky widget mode A and Y are however only accessible in sticky widget mode OK changes to sticky widget mode when in profile mode and changes stickiness when in sticky widget mode PIN Mode The loopholes here are the OK button and the numeric buttons which also are used for PIN code entering So it s important that when asked for PIN these buttons are locked specifically for this purpose If not one will change profile when trying to enter the PIN code We have solved this by adding a new mode PIN mode In here the numeric buttons and the OK button are locked for PIN use only SPRINT 4 RESULTS 8 2 103 a a H 6 0 JUIN 6 0 Eb PSJeIHUSUANE Nid luo4id JUUNI JO SIS PIM e MOUS State D syeBpim ANS UJM AL Spa 81TLO1d 34O NO Bueup uo A33ns 4JeHpimy SEW T P Bpimy 7 e 3J0 NO FS APS 198PIM4 SEW Figure 8 1 NS s 38 Bpimy aBueys u0 AjIN5 s ye BpIM4 on
137. k is organized in units also known as sprints which usually are 2 4 weeks long During each sprint every day should be started with a Scrum meeting At this meeting each team member should say something about what they did last day what obstacles they met while trying to accomplish the goal and what they are to do this day These meetings should not last more than approximately 15 20 minutes and be at the same place and time every day After each sprint the results should be made available for the customer to review If any problems were encountered they should be discussed and prevented from happening again The project can also be monitored by the customers during the sprints and be evaluated on the daily Scrum meetings Some projects also tend to use a burn down chart to visualize the progress There are plenty of advantages using Scrum For instance if there s a new requirement coming up in the middle of the project it can be implemented at anytime Also having the availability of using the customer at anytime increases the feedback given to the team This will increase the final prod uct also resulting in a reduced need of maintenance after the product being CHAPTER 3 PRELIMINARY STUDY 48 installed Figure 3 8 Scrum Method 30 days g gt Product Backlog Sprint Backlog Sprint Working increment of the software 3 8 2 Evaluation of Alternative Methodologies These two methodologies are both good The waterfall
138. king sites and photo sharing applications but they do not want a browser interface on their TV Above all they do not want menu screens and applications to interfere with the fun and relaxation of watching television This is why most part of peo ple prefer to use their own PC It is more user friendly for accessing the Web contents instead of using the TV with a browser 3 33 The Wanted Situation and Its Possible Solutions This section describes the wanted situation with widgets on TV It describes how Digiboards wants this and how Yahoo and Intel already have designed it 3 3 1 Digiboards Vision For years the idea of an Internet enabled TV was viewed negatively A central pain point for the early solutions was the complexity of the interface in most cases it was based on a browser and required user input from a keyboard 33 3 3 THE WANTED SITUATION AND ITS POSSIBLE SOLUTIONS Digiboards solution is addressing the need for Internet content on con sumers TVs in a user friendly manner and make Internet on TV a pleasant experience Digiboards widget platform takes advantage of industry standard tools making it easy to rapidly develop and use TV widgets based on popular Inter net services Ordinary users with no programming skills can easily connect to dynamic Internet services and create their own widgets online while skilled developers may use the web based widget creator to create TV web widgets that leverage a richer
139. liminary Study The preliminary study is to gain a deeper understanding of the various tech nical and theoretical aspects of the project task In order to develop a good solution it is vital that the task is investigated thoroughly It is also necessary to study and consider possible existing solutions for the problem The prestudy is intended to be used as a technical reference for the team 3 1 Background Information Here follows background information of the television industry and the tech nologies we were planning to use in our project as well as an introduction to usability and architecture 3 1 1 An Overview of the Television Industry Modern day television Wikipedia 2009f is a fairly complex business in which several different actors are involved in the different stages The process of get ting from an idea to a broadcasted TV show can roughly be divided into three parts or stages These are planning production and distribution broadcast ing 3 1 1 1 TV Shows There are three basic types of TV shows Scripted TV shows e g TV series TV movies unscripted TV shows e g talk show reality show and infor 17 CHAPTER 3 PRELIMINARY STUDY 18 mational TV shows e g documentary news weather forecasts The most important part of developing a TV show is the concept For a scripted TV show there will also be the need to describe the main characters and coming up with their background story For unscripted TV shows the
140. ling However the simplest way of handling any sort of problem would be to shut off and turn the television on again resetting everything back to default 6 Permit easy reversal of actions By having this feature it relieves anxiety as for the user knows things can be undone However it also encourages exploration of unfamiliar features This point is barely used in our system as for the very few features available 7 Support internal locus of control Design the system so that the user is the initiator rather than the responder In our system the user 117 8 2 SPRINT 4 RESULTS controls everything He she is the initiator all the way and will only get response by the different feedback from his actions 8 Reduce short term memory load Keep things simple Can our system be more simplified I doubt it The core of usability also focuses on a design philosophy called User centered design UCD Wikipedia 2009h This philosophy mainly focuses on what the end user needs and what he wants This is a view Donald A Norman has focused on It seeks answers to questions such as e Who are the users e What are the users experience levels e What information do the users need e How do users think the final version should work UCD basically involves simplifying structure making things clear and visible getting the mapping right exploiting the powers of constraint and designing for error prevention Concerning our system being qui
141. lish That is the communication that needed everyone s input We should also have done more to get quality assurance of the documents written The documents written and added to the report should have been proof read before they were added to the report This would have saved us time in the end of the project with correcting of the report 11 1 2 Project Work Effort The original estimate for the project was 1872 hours in total for the entire team The project lasted for 12 weeks meaning we should have an estimate of 156 work effort hours a week to reach the goal for the project In Figure 11 1 we can see the estimated work effort versus our actual work effort We see that we had a slow start in the beginning then we had a week where we worked more than estimated When we waited for the chip we had a little lower effort than estimated and in the end we see that we had an increase in the end We ended up with 1814 effort hours in total 58 hours behind the actual estimate for the course This was not a problem as we reached all our goals Figure 11 1 Work Effort Actual vs Estimated 250 200 150 j Actual 50 0 Y j T T T T T T T T T 36 37 38 39 40 41 42 43 44 45 46 47 Week In Figure we see the actual versus the planned work effort for the different phases The two parts that separates most is the prestudy and the 139 11 1 THE INTERNAL PROCESS AND RESULTS programming This was a conseq
142. lso responsible for Git 2 3 1 3 Quality Assurance Manager The quality assurance manager was responsible for making sure we were delivering the system in accordance to the customer s needs He was also responsible for time of response 2 3 1 4 Document Manager The document manager was responsible for making templates of the stan dardized documents needed and the organization of the project documents She was also responsible for the final approval of phase documents and TEX 2 3 1 5 Customer Contact The customer contact was responsible for keeping in touch with the customer All correspondence went through him It was also his job to call in the customer meetings and prepare for them 2 3 1 6 Secretary The secretary was responsible for taking notes during the meetings writing minutes and deliver them She was also responsible for delivering all the documents to the right people at the right time 2 3 2 Group Members An overview of the group members and their role in the project Table 2 2 9 2 4 TEMPLATES AND STANDARDS Table 2 2 Group Members Name Email Role Alessandro Boron boron stud ntnu no Quality assurance manager Ane Min Hofplass Garnaas garnaasQstud ntnu no Secretary Lars Martin Riiser Haraldsen larsmaha stud ntnu no Customer contact Morten Weel Johnsen mortjohn stud ntnu no Project manager Tiril Anette Langfeldt Rodland tirilane stud ntnu no Document manager
143. lts When he is pleased with the result he saves and leaves the computer for Jane She also clicks Create new profile As John did she adds the news feed and weather forecast She also adds the Facebook and the Twitter widgets and finally the clock She names it Jane s profile after dragging the widgets where she wants them Secure Profile She does not want anybody to read her Facebook and Twit ter feeds so she marks the box for Secure profile and is asked for a 4 digit PIN code She enters a PIN reenters it and the profile is secure She saves and is back to the list of profiles Now this contains all three profiles Edit Profile She clicks on the default profile wanting to edit it a little She renames it to The Does profile and adds an international news feed in addition to the other local news feed She also adds another weather forecast and configures it to show the weather where her parents live as they often go there on the weekends She then adds the clock She drags the widgets to different spots so that they will not cover anything crucial Log Out They are pleased with the result so they saves and log out eager to try out their new widgets 6 2 1 2 Use of Widgets Start Widgets John Doe makes himself ready for some hours in front of the television as his favorite football team is playing He turns on the TV and chooses the right channel As the game is not very interesting as first he soon clicks the widget
144. ly meetings that everyone must attend and work with the sprints We can see that we worked more than planned on Thursday and that we were 4 hours behind schedule Positive e We had a meeting with Snorre Gylterud who gave us feedback on the report e We managed to get the demo ready for the customer within time of their meeting Thursday 22th Negative e We had no meeting with the customer beforehand because of sickness e We did not add many pages to our report as most of the work was programming 97 7 3 SPRINT 3 EVALUATION 7 3 1 Conclusion The demo is almost done and ready to be shown Here we have improved a lot The architecture is however still not documented although much of this has been done The documentation of this must be done in Sprint 4 CHAPTER 7 SPRINT 3 IMPLEMENTATION PART I Figure 7 5 Sprint 3 Burn Down Chart Burn down chart Sprint 3 Burned down Balance Daily Weekday Day Planned Actual Planned Actual Completed 0 100 100 N A Wed 1 24 24 76 76 24 Thur 2 36 48 40 28 48 Fri 3 40 28 0 Sat 4 40 28 0 Sun 5 40 28 0 Mon 6 22 16 Tue 7 0 4 120 100 80 60 i Planned Actual 40 20 0 el 2 4 5 6 7 CHAPTER 8 Sprint 4 Implementation Part II This is the documentation of the progress results and acquired knowledge during Sprint 4 of the project This fourth sprint took place between 22th and 28th October 2009 8 1 Sprint
145. mentation vpo E oo Sede eae 130 a ou ee eee ee ee ee 130 A 131 Chapter 10 133 Chapter 11 OTE 137 11 1 The Internal Process and Results 137 11 1 1 The Teamwork sois i6 4 bee BG de Eo 137 11 1 2 Project Work Eflorti 4 es e is pe ess 138 11 1 3 The Prec lt a eee dee FPR oe See eee 8 139 11 2 The Customer and the Project Task 2 141 TESTA 142 he ds ue a e e ce 142 Glossary 152 References 156 Bibliography 157 Appendix A A 1 Appendix B Concrete Plan B 1 Appendix C Risk Analysis C 1 Appendix D Effort Budget D 1 Appendix E Block Diagrams E 1 Appendix F F 1 F l The Tests 2 0 000000 00000000000 000084 F 1 F 1 1 Basic Usel e cossa atra rerea farkad sa QN F 1 F 12 Profiles 0 sama W usq sme e ai ap 9 eE F 2 dese E es ea ee te ee ee F 2 XIV F 2 The Rights of the Participants 2 248664 4404 44 2 F 3 F 3 User Evaluation Ame BHR mS Poe eed F 4 F 4 Summary Questions ge bs ee Bee de a ee ee P 7 Appendix G Templates G 1 Appendix H Functionality Description H 1 Appendix I Email Conversations I 1 XV xvi List of Figures 3 1 Ajax vs Classic sore y e res 25 3 2 Ajax vs Classic I ose eed ed ee eh ee ee eed 26 RIE A E EA 30 AAA AAA A A EIA 34 3 5 Widget Dock cs s os e s s e A 35 3 6 SWOT Analysis of the Widget Channel 37 3 7 Waterfall Method esos esse 47 3 8 Scrum Method cad era BOR
146. most of the time Male 20 It felt cool Whenever Football 25 good Was a bit I log on results techno confusing or do logical at times something skills correct it should say YOU RULE MAN Female OK III liked I don t Calendar 20 25 guess A how things know and bus good tech bit confus float A Must be schedules nological ing with small sys the O skills the O but tem and button but ton Got easy to I think it after a learn how it will be while to use better on TV Continued on next page F 9 F 4 SUMMARY QUESTIONS Person What do What If you What Other you feel was pos could widgets Com about itive change were im ments what about one portant you have the situa thing to you seen tion What would it be Male Cool thing I can see I don t Football Easy tasks 15 20 for people the foot know results and mediocre that watch ball results football good a lot of while I results techno TV watch a logical movie skills Male A bit The stock I wouldn t Stock Thanks for 40 50 too many market have so market letting me mediocre functions widget many wid changes be a part techno for me to Easy to gets But news of your logical handle I turn on I under project skills tried to use and off stand this the mouse can be but was changed strictly indiv
147. mote control It is very simple watching video clips and photos read ing email or access your favorite web service like eBay Twitter and Flickr Users only have to push a button on their remote control to bring up the Widget Dock select a TV Widget and view content while they are watching their favorite TV show The strength of the system is that it is possible to access web contents and in the meanwhile watching TV programs For example users can watch the pictures of their vacation without missing a moment of their favorite baseball team The Yahoo Widget Engine is based on the popular Konfabulator wid get platform for PC which has been re engineered specifically for consumer electronics devices It also provides an entry level framework for running TV 35 3 4 SWOT ANALYSIS Figure 3 5 Widget Dock d oe p ER iftronix Co 24 09 0 42 a Videos o 146 38 2 92 Remand ARB Enterprises 39 94 0 25 4 Grant s Photos Widget on the constrained hardware capabilities of today s integrated digital TVs Yahoo and Intel have also released the Widget Development Kit WDK available to developers CE manufacturers advertisers and content publish ers providing the tools needed to create new Widgets The WDK allows developers to use JavaScript XML HTML and Adobe Flash to write TV applications for the platform extending the power and compatibility of PC application developer programs to TV and related CE devices With the Widget D
148. n many cases related pages on a website consist of much content that is common between them Using traditional methods that content would have to be reloaded on every request However using Ajax a web application can request only the content that needs to be updated thus drastically reducing bandwidth usage and load time e The use of asynchronous requests allows the client s Web browser UI to be more interactive and to respond quickly to inputs Sections of pages can also be reloaded individually Users may perceive the application to be faster or more responsive even if the application has not changed on the server side e The use of Ajax can reduce connections to the server because scripts and style sheets only have to be requested once e The state can be maintained throughout a Web site JavaScript vari ables will persist because the main container page need not be reloaded CHAPTER 3 PRELIMINARY STUDY 28 Weaknesses of Ajax e Pages dynamically created using successive Ajax requests do not auto matically register themselves with the browser s history engine This meaning that clicking the browser s back button may not return the user to an earlier state of the Ajax enabled page but may instead re turn them to the last full page visited before it e Dynamic web page updates also make it difficult for a user to book mark a particular state of the application Solutions to this problem exist many of which use the U
149. n one corner and continues in one direction Upper left corner and down might be a good default 4 Profiles A profile is meant as a collection of widgets Premium users should be able to create as many profiles as they wish The profiles could either be personal such as John s profile with John s favorite widgets or categorical such as News or Sports with many widgets of the same overall type How the user chooses to organize this is totally up to him her A possible solution is one profile for each of the family members in addition to some categorical profiles for the whole household to enjoy 4 1 Secure profiles Profiles can also be password protected for privacy reasons This is practical when the user has a say Facebook widget The password is a 4 digit PIN code which is entered using the numerical buttons 4 2 Default profile When first entering the widget mode the widgets from the default profile are loaded Probably it will be shipped with a default profile with widgets with for example local news and weather Then premium users can add new profiles and change which is the default on the web portal H 8 4 3 Creating profiles Premium users can create more profiles on the web portal Here they can choose the name of the profile which widgets it shall contain and where the widgets shall be placed When adding a new widget it will be automatically placed in the first free space This might be a very unpract
150. n stopping to listen for key input from the user We found that the reason for this was that the dummy JFrame we set up with the KeyListener to handle the user input got out of focus when the visibility of the widgets where changed To alleviate this problem we extracted the code that handled the key input into its own class and passed an instance of this class around to all the JFrames in the application so that key input would always be registered The football widget was also completed in this sprint and we started to integrate this into the widget application When the widget application was running a football team scored every 15 seconds and the football widget was updated If the widget application were in TV mode and the user had set the football widget to sticky on change it displayed for three seconds when ever there was a goal We also added a visual indicator to tell the user which state the different widgets were in A green border around the widget now indicated that the widget was set to sticky a blue border indicated that it were set to sticky on change and no border indicated that it were in the default state i e not sticky or sticky on change 8 3 Sprint 4 Evaluation For Sprint 4 we estimated a total of 188 hours We knew the estimate were too high but since this was the last sprint we wanted to finish the different parts that were left The estimate for this sprint was almost 100 hours more than the other sprints which means
151. nd Y The current widget will be marked in one way or another for example with a border or color change When you have marked the widget you want to stick press OK Then you are back to the widget overview with the sticky widgets marked in some way From here you can choose another widget and press OK When you are done selecting sticky widgets press the W button and you will go back to normal TV mode but with the sticky widgets still present Figure 5 6 Next time you enter the widget mode the sticky widgets will be gone A state diagram of the remote control input is in Figure 59 5 2 SPRINT 1 RESULTS Figure 5 1 Regular TV This is the starting position showing just the TV signal Figure 5 2 Default Profile When entering widget mode the default profile is shown CHAPTER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN 60 Figure 5 3 Enter PIN Code When trying to enter a secured profile one is asked for a PIN code ENTER PIN Figure 5 4 The Chosen Profile The secured profile is entered showing the widgets 61 5 2 SPRINT 1 RESULTS Figure 5 5 Select Sticky Widgets When selecting sticky widgets the non chosen widgets become transparent This is shown on the two widgets on the top of the screen Figure 5 6 Sticky Widgets Shown The big widget is sticky and is visible even in TV mode The other has disappeared 62 CHAPTER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN
152. nd keeping the budget 11 4 Improvements of the Course The course itself depends much on the task the customer and the supervisor Thus difficult to give any general improvements except on the lectures The Technical Writing Lecture The writing course however could have been earlier At least some of the information should have been provided from the start as it was important for how we structured the report For example when to write in the past present and future is something we need to know when we write it not afterward A lecture more directed towards computer related writing might also be an improvement We had to disregard some parts as they were not relevant 143 11 4 IMPROVEMENTS OF THE COURSE for our report The lecturer and supervisor disagreed on certain issues e g the use of references It should also be mentioned that most of the groups used BT X while the lecture was very non BTFX supportive This complicated things a bit as the lecturer did not seem to understand why we did things the way we did standard E TizX and wanted us to do it in a way that did not go well with BTFX A more How to write computer related reports in ETRX directed lecture would have been great CHAPTER 11 EVALUATION 144 Glossary Definitions from Wikipedia http wikipedia org and http dictionary which has word searches from WordNet Webster s FOLDOC and a variety of specialized sources Acid3 Test A test page http
153. net STi7109 A high definition set top box DVD decoder chip Scrum An iterative planning and execution method for software develop ment based on agile development Wikipedia SoC System on a Chip An electronic system with all the components integrated into a single chip Wikipedia Star Topology Network topology where all peripherals are connected to each other through a hub in the middle as the central node Wikipedia SuperH A RISC instruction set architecture for embedded systems Wikipedia SVG Scalable Vector Graphics A family of specifications of an XML based file format for describing two dimensional vector graphics both static and dynamic i e interactive or animated The SVG specifi cation is an open standard that has been under development by the World Wide Web Consortium W3C since 1999 Wikipedia GLOSSARY 150 Twitter A free social networking and micro blogging service that enables its users to send and read messages known as tweets Tweets are text based posts of up to 140 characters displayed on the author s profile page and delivered to the author s subscribers who are known as followers Senders can restrict delivery to those in their circle of friends or by default allow open access Users can send and receive tweets via the Twitter website Short Message Service SMS or external application Wikipedia W3C World Wide Web Consortium The main standards body for the World Wide Web W3C works w
154. nt sources to be merged and processed concurrently Operating Systems STi7109 is both Linux Windows R CE and OS21 com patible All this makes STi7109 one of the most used set top boxes of today 3 7 1 2 Intel R Media Processor CE 3100 Intel R Media Processor CE 3100 is a media microcontroller from Intel R Corporation one of the largest semiconductor chip makers in the world Description According to Intel Corporation Product Brief 2008 the CE 3100 is the first system on a chip based on the Intel architecture IA This is developed for Blu ray players with Internet connections advanced cable set top boxes and modular digital televisions as well as other Internet con nected consumer electronics products To do that the chip combines a high performance IA processor core with video decoding and processing hardware dedicated multi channel audio pro cessing DSPs Digital Signal Processor a powerful 3D graphics engine a security processor and support for multiple peripherals The CE 3100 chip is trying to combine the advantages of IA such as access to a great library of code with those of a system on a chip such as the cost effectiveness the integration the low power consumption and so on The result is a chip that can run anything that a normal x86 machine can run except if it demands too much memory disk space or processing power It is also small enough to fit in almost anything Or in this case a TV that can run Adobe A
155. ology KDE K Desktop Environment KJS KDE JavaScript LGPL Lesser General Public License MIT Media Independent Interface MXML Magic eXtensible Markup Language NRK Norsk Rikskringkasting NTV Norges Televisjon AS OEM Original Equipment Manufacturers OS Operating System QA Quality Assurance Qn nth Quarter RAM Random Access Memory RIA Rich Internet Applications RISC Reduced Instruction Set Computer RMIT Reduced Media Independent Interface SD Standard Definition SDRAM Synchronous Dynamic Random Access Memory SoC System on a Chip STB Set Top Box SVG Scalable Vector Graphics SWOT Strengths Weaknesses Opportunities Threats UCD User Centered Design UI User Interface USB Universal Serial Bus VCR Videocassette Recorder VoD Video on Demand W3C World Wide Web Consortium WDK Widget Development Kit XHR XMLHttpRequest XHTML eXtensible Hyper Text Markup Language XML eXtensible Markup Language XSL eXtensible Stylesheet Language XSLT XSL Transformation XXIII XXIV CHAPTER 1 Introduction The system designed is a widget overlay on the TV The widgets are Internet applications like news feeds and weather forecasts Our main challenge of this project was to find a solution of how Internet widgets can be displayed overlaid the main TV picture Another focus was to make the system as user friendly as possible An advanced user should have the possibility to edit the widgets and change the layout without difficulty T
156. on we agreed on most of the issues and seemed to share the same visions about the widget system CHAPTER 11 EVALUATION 142 The Project Task The original project task became impossible as we did not get the assigned microcontroller Our first task was to get hold of this but it proved impossible The customer could have done this themselves and handed us the chip during the initial meeting As this would have proved difficult for them as well they should have made the necessary changes to the project before presenting it to us That would have saved us a lot of time and frustration and we could have dug even deeper into the new task 11 3 The Supervisors We are overall satisfied with our supervisors Communication with the Supervisors We had weekly meetings with both our supervisors We invited the supervisors to some of the important customer meetings and Snorre Gylterud the assistant supervisor joined us in two of these meet ings He gave positive feedback on how we held the meetings and input on what we could do to improve our project e g the usability test The Supervising The supervisors helped a great deal with the report The main supervisor gave us constructive criticism on the overall structure while the assistant supervisor read through it and gave us feedback on the content They both provided a lot of comments and was a great resource during the project They also were an inspiration when it came to budgeting effort a
157. onse Unfortunately the response was negative This is an excerpt from ST s response Sorry but we are not in a position to support this request The board in itself is just a brick in the setup then you need the STAPI software license which cost itself 10k you need the debuggers etc And of course all projects requires support from ST at some point and our support group is already overloaded so we cannot enterprise to support a such project without clearly identified potential After bringing this up at the customer meeting we decided to give up ST and try to get the chip from Lyse Altibox instead In the meanwhile we could look at another solution getting an Intel chip 3 6 2 Intel Media Processor CE 3100 The starting place with the Intel chip was much the same as with the ST chip We browsed through the web pages Googled around for information and emailed the Norwegian and Swedish distributors in order to get a hold of the chip We got a more positive response from Intel Sweden although they needed more information to help the group The information were brought to them by Harald Amundsen the CEO of Digiboards 3 7 Alternative Microcontrollers The solution Digiboards wanted must run on a microcontroller More spe cific a microcontroller from a television set We were looking at the ST chip ST Micro STi7109 Single Chip Set Top Box IC which are in most television sets today and the Intel R x86 chip Intel Media Pro
158. or less the same although it was mentioned the competitor s system looked a bit overwhelming as it was too much for a user to handle To fully optimize the results of each test we handed out a scheme with some questions we wanted answered Some of the important answers are shown in Table The rest can be seen in Appendix After having tested on a few persons we soon figured the biggest weak nesses of our product The use of the O button and the user feedback on the different actions were clearly not good enough Referring to a quote said during the test by an early test subject Male 20 25 years good technological skills OK I give up You know I ve click the O button so many times I have no idea where I m at pause Can you help me pause OK I restart the task one more time before I give up In this case the user clearly did not get enough feedback as for not knowing whether he had completed the task or not He had simply done the right things without knowing it Another issue was feedback concerning entering the different profiles Task two includes Log into Harald s profile and should not be too hard After the user typed the correct pin and entered the profile she was not aware of actually having entered it She believed she was at the same default profile as she started at Referring to a quote at this case Female 20 25 years good technological skills Now I press O to enter the profile pause Uhm
159. ortal Medium 6 1 2 3 Alternative Solutions Medium 6 1 2 3 1 User interface Medium 6 1 2 4 Sketches Medium 4 2 2 4 1 Remote control Medium 2 2 2 4 2 TV with wideets Medium 2 2 3 ARCHITECTURE 128 1 2 3 4 3 1 Logical View High 56 1 2 3 3 1 1 Overview High 32 1 3 1 2 Class diagrams Medium 12 2 3 3 1 3 Sequence diagrams Medium 12 2 3 2 Development View Low 24 3 4 3 2 1 Overview High 12 3 4 3 2 2 Package diagram Medium 12 3 4 3 3 Process View Low 24 3 4 Physical View Low 24 4 IMPLEMENTATION 198 2 3 4 5 4 1 Mock Up Medium 128 2 3 4 5 4 1 1 Widget window Medium 64 2 3 4 5 4 1 2 Widget content Low 64 2 3 4 5 4 2 Testing Low 70 4 2 1 Test cases Low 32 4 2 2 Testing Low 6 4 2 3 Bug fixing Low 32 5 USABILITY 64 3 4 5 5 1 Usability Testing Medium 64 3 4 5 5 1 1 Discussion of necessity High 16 3 5 1 2 Preparation Low 16 4 5 1 3 Execution of test Low 16 5 5 1 4 Evaluation Low 16 5 SUM 462 CHAPTER 4 REQUIREMENT SPECIFICATION AND BACKLOG 54 CHAPTER 5 Sprint 1 High Level System Design In this sprint we will be making an overview of the system design and explain how our solution is simple and easy to use for the general user This first sprint took place between 1st and 7th October 2009 5 1 Sprint 1 Planning The focus for the first sprint was the high level design which included use cases and high level architecture We tried to get most of the design com pleted In addition the first sprint we had
160. ory syu ur uSISOp UL 3oequoo 19W09 a dur eouro ds sqyusuwis1mbal rouloysnd y o1mbaz Toul sosueyo eug sox sno eyeusie Jo yey posoiddy ploay IN UM Soreip MAN IN sno jo osueyy UV TI SASey JEWS Op 09 aaey yonpo d IM 3s rsnq sIoquiaur pus ayy jo Aqipenb qo qns 1ayyoue ureoy spou d sy oy se ro 9p p noo jo sju uruSIsse JO 1938 Sung sported 4sot yey ofdood ma qof e SAMAL ueur 3qo oid yofoid snq 1y mouy wes suoure peopyiom jo ve 19730 yya Asnq ON uyoly1our 99YM Y ldo q aonpey H N Sumnqiystpoy H ose sioquiaur urea HV OT suory suorpy u qoid a qisuodsey jeuljpeeq y pue 3azyel3g qoid s ou nb suoo 109384 ASIH Ayarpy ON APPENDIX D Effort Budget The person hours are given in Figure The number at the top left is the estimated number of hours that week the top right is the estimated accumulated from the start to that week The bottom numbers are the same only the actual numbers not the estimated D 1 APPENDIX D EFFORT BUDGET D 2 Figure D 1 Effort Budget Week 36 Week 37 Week 38 Week 39 Week 40 Week 41 Activity 25 08 02 09 03 09 09 09 10 09 16 09 17 09 23 09 24 09 30 09 01 10 07 10 30 30 26 56 60 116 28 144 28 172 28 200 Project management 36 36 24 60 24 84 21 105 21 126 14 40 36 36 24 60 6 66 30 96 24 120 30 50 Lectures and self study 36 36 18 54 24 78 31 109 24 133 37 70 24 24 60 84 60 144 12 156 156 56 Planning 18 18
161. os a ds A 70 6 1 Sprint 2 Baeklog sueo amp ro a e he ow 78 7 1 Sprint 3 Backlogo ua pias eee o eae we ee 90 8 1 Sprint 4 Baeklog osmosis a Bree a wo oS 100 AAA AA 105 A AA EN 107 XIX SA UCA u a oa es Mak Bob Meee os a Be eB SE a 108 9 1 Sprint 5 Backlog ag 224 42424 444584626 4 84 124 9 2 Hirst Usability Test ias be eo ae ae Sw ee Se ee Se eS 127 9 3 Second Usability Test 129 C 1 Risk Analysis Part I 2 4 244 24454 e445 ee aes C 3 C 2 Risk Analysis Part larisa baaa a C 4 EI Basic USE orozco F 1 ER AA A EN P 2 F 3 Sticky Widgets cis bar ceder ad EDD F 2 F 4 Answers for the Summary Questions F 7 Acronyms 2D Two Dimensional 3D Three Dimensional API Application Programming Interface ATA Advanced Technology Attachment CE Consumer Electronics CISC Complex Instruction Set Computer CPU Central Processing Unit CSS Cascading Style Sheets DAC Digital to Analog Converter DDR Double Data Rate DOM Document Object Model DRAM Dynamic Random Access Memory DSL Digital Subscriber Line DSP Digital Signal Processor DVI Digital Visual Interface DWD Digiboards Widget Dashboard EPG Electronic Program Guide HCI Human Computer Interaction XXI HDMI High Definition Multimedia Interface HD High Definition HTML Hyper Text Markup Language IA Intel Architecture IC Integrated Circuit IPTV Internet Protocol Television IP Internet Protocol IT Information Techn
162. ost of CHAPTER 9 SPRINT 5 USABILITY TESTING 128 By having this test it resulted in slightly more implementation and writ ing more on the description part in the user manual We implemented differ ent profile names and typically a Welcome to Harald s profile message when entered that profile We also added one more widget from two to three widgets making it easier to see what widget that is chosen and which ones that are faded out After running a few more tests with the improved demo the results were already better This can bee seen in Table 9 3 below The rest can be seen in Appendix FJ As we can see from the second user test the results have slightly improved The test persons seemed to be happier with the demo having an easier time to understand what was going on at the different modes We did however pick up a few important changes for the customer s end product The different application modes TV mode Widget mode and Sticky mode should be a lot more described and give feedback to the user whenever he has changed from one mode to another The different Widget modes Sticky mode Sticky on a change and Not sticky should also give better feedback whenever a user changes from one to another Only changing the boarder color did not seem to be enough The size of the different widgets This matters if the program is run on a small screen Allin all the tests were completed smoothly We did run into one problem thoug
163. ountries but this can be used as a strength as our system can be available for these countries which have no competition It should be easy to personalize the widgets and to create new ones This should be possible for our system to do 3 5 Business Requirements The business requirements were designed based on the discussion with the customer and other information from the customer Digiboards planned to have a complete beta version with basic functionality within 2009 In order to get this done we needed to have a prototype of the system made for one of the microcontrollers either the STi709 or Intel CE 3100 Their intent was to release the product to the market in Q2 2010 have their first commercially sale Q4 2009 Digiboards will have the control of the web application system thus the group s focus is on the microcontrollers and getting the widgets layered structure These business requirements which were divided into functional and non functional requirements formed the foundation of the product backlog and requirements for the project 3 5 1 System Requirements SR1 The chip must support Adobe AIR If not Adobe AIR is supported it must at least support Adobe Flash SR2 The group needed to use Webkit and JavaScript in the development process SR3 One of the microcontrollers either the STi7109 Microcontroller or Intel Media Processor CE 3100 must be used in the project 3 5 2 End Deliveries Having discussed with Digibo
164. ours For the first sprint this went well The reason for this is that we have regular meetings where everyone at the group must attend As a consequence of this the planned work and the actual work would not differ that much This is what was mentioned as pros and cons at the sprint closing meeting Positive e Well prepared e Finished all our goals CHAPTER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN 74 e Good team work e Daily scrum meetings was effective e Team members meet in time Negative e Sickness caused too few work hours and as a consequence the rest had to work more to get the estimated effort e We did not focus on updating the report during the sprint e Everyone was not always updated on what the others were doing 5 3 1 Conclusion The conclusion from the sprint review meeting was that the group should try to make the report a part of the sprint so that the report was updated with the documentation made in the sprint We will also in later sprints give the team members more responsibility 75 5 3 SPRINT 1 EVALUATION Figure 5 10 Sprint 1 Burn Down Chart Burn down chart Sprint 1 Burned down Balance Daily Weekday Day Planned Actual Planned Actual Completed 0 84 84 N A Wed 1 24 22 60 62 22 Thur 2 30 40 30 22 40 Fri 3 4 4 26 18 4 Sat 4 0 0 26 18 0 Sun 5 0 0 26 18 0 Mon 6 12 12 14 6 12 Tue 7 12 4 2 2 4 i Planned Actual CHAP
165. pplications features will look to the end user but it is also very important to know how the web application should function as these are connected in the way they are going to operate Figure 5 9 High Level Architecture Overview Content server I PF Internet Widget application Configuration server The architectural overview diagram Figure shows us the three dif ferent components of the system and how they are connected The overall idea is that the user can interact with the widget application by the remote Then the widget application handles the commands from the user and make these to call functions on the content server and the config uration server which will handle the different profiles or views the widget application and TV should show Content from widgets will be pushed or pulled from the content server depending on which type of widget it is 5 2 3 1 Widget Application The system will need a widget application which will be implemented in our demonstration for the final presentation The widget application is respon sible for all the interaction with the end user and the interaction with the content server and configuration server and will be on every set top box STB that the TV distributors deliver The STB will respond to the remote control which will make different calls to functions in the widget application Most of the logic will be in the widget application which is responsible for taking care of t
166. presentative from Intel and forwarded the contact to Digiboards Unfortunately it did not help and we were unable to get a hold of either of the microcontrollers As a result of this we had a meeting with Digiboards were we discussed what Digiboards expected from us and set ourselves new goals We agreed that we should focus more on the design of the system and try to get a demo for our final presentation They wanted us to discuss internally the different possibilities for the system and figure out a way of implementing it In addition we brought up the need for usability tests and also more comprehensive architecture design The change in project direction happened after we had gone through the earliest phases prestudy and requirements A consequence of this was that we needed to change much of the requirements and also do more on the prestudy Some parts of the prestudy that we had emphasized at first would not be useful for our further work This does not mean that it was futile as the prestudy would be important for the ones that will implement the final system During the first sprints we did most of the design issues describing the functionality of the system and the high level architecture We started work 133 CHAPTER 10 CONCLUSION 134 ing on the demo in Sprint 2 after desire from the customer to have a mock up of the system early in the sprint phases We had customer meetings once a week during the sprints to assure that we shared t
167. print 4 Burn Down Chart 2 44 es re 121 9 1 Sprint 5 Burn Down Chart 132 11 1 Work Effort Actual vs Estimatedl 138 11 2 Actual vs Planned Effort for the Different Phases 139 D L Cantt lIablel a a Eo BH aca EAS BEERS ES HS B 2 D 1 Effort Budget 22 ec oe ge oS ek de ee de eee ee ES D 2 E 1 ST Micro STi7109 Single Chip Set Top Box Decoder E 1 E 2 IntelR Media Processor CE 3100 E 2 F 1 Description of the O button P 5 xviii List of Tables 2 Milestones ee AN 7 2 2 Group Members 444444 4 64 4 660 be doe bs 9 2 3 Weekly Schedule 24 2446 s0 4445 di wa des 9 2A Time of Response or eae ee eae ee ee eS 14 3 1 Rich Internet Application Browser vs Desktop 20 3 2 Operating Systems with AIR Support 22 3 3 Comparison between STi7109 and Intel CE 3100 41 3 5 Evaluation Criteria Grades lt 43 3 4 Evaluation Criteria Priorities 43 326 Evaluation of STi7109 eee a eB eS ep Ree a pow Gas 44 3 7 Evaluation of CE3100_ we BS 44 A 2S READ ES BS 44 4 1 Functional Requirements o 50 4 2 Final System Requirement 51 4 3 Product BackloBl cc 6 ue 24s ed a rd SX 53 51 Sprint 1 Backl og soeg aga a we a as Oe o Oe 56 AA z salman EE A 68 AA A 69 AAA a a pa e w d
168. quand JUUN e State Diagram of User Input UNeJ Py M AL PULION lt T P pIMy M Lo nuau ul euuoU se pew sI 435p My 1x a sj9bpim S YIM 3195 U0U J9DPIM4 DALIA AL IPULION abuey gt uo A4915 s J9bpiM paje eR BpIMy 440 NO j H nuaw S 340 NO e Figure 7 3 nu uu ul Bueu2 uo 33ns se p xleuu sI J9DP IMA X abueyo U0 Aq9 05 J9DPIM4 SHE W AQS SI 9 Hpimy Aus Jou s qe 6piwL I P 6piw nu uuul Aus se paxqueuu SI JODPIM xe T 42 6pimy Y poul 1 DBpTM CHAPTER 7 SPRINT 3 IMPLEMENTATION PART I 94 TV Profiles By using the lt and buttons the user can change profiles It will scroll through the different profiles and load each profiles widgets When a pin protected profile is loaded the user must enter the correct pin to view this profile The user types the pin with the numeric buttons and then push OK If the pin entered is not correct the user will be notified and asked to enter it again The customer wanted to have an unlimited amount of profiles To save the user from scrolling through many profiles to get to the one he wants we implemented the alternative profile shortcut When the user enters widget mode he has a limited amount of time where he can select a profile by typing the profile number TV Sticky Widgets The customer wanted a new feature They wanted the option of widgets being sticky on change This meaning the widget will
169. roller as the STi7109 was impossible to get hold on But so was the CE 3100 so the original goal was then completely out of the picture Our new goal was to design the widget system instead of making it pos sible to run on a microcontroller In addition to the design we would make a demo to show the concepts of how everything works This we managed to do After our work Digiboards had enough information to apply for a patent What We Learned We learned how to use Scrum in a team In general we learned a lot about teamwork and how to cooperate and work together Especially the group dynamics lectures gave us information about how to cooperate and how to better understand each other We learned how to write technical reports this including report layouts bibliographies and how to structure it We all learned more TEX both basic and advanced use We also learned that things never go according to the plan The missing microcontroller is a good example of this 11 2 The Customer and the Project Task We are very satisfied with the customer and even though we had problems with the assigned task it turned out okay Communication with the Customer It was easy to get hold of the cus tomer We communicated mostly through the customer contact but could also contact them directly We mostly used email but also Google Talk and of course meetings They responded within the agreed time limit and came to most of our proposed meetings In additi
170. rolling through the widgets The OK button is used to choose the current widget and thus changing its stickiness 2 2 5 PIN mode There is also a fifth mode PIN mode This is a sub mode of the profile mode Here the numeric buttons and the OK buttons are locked That is they will only be used to enter PIN and not change profile or mode and such 3 H 6 H 7 3 Widgets Widgets are the small programs that will run on the TV screen Premium users can buy more widgets on the web portal Once bought they can be used on any profile It might be possible to create your own widgets and sell these in the widget store 3 1 Sticky widgets It is possible to set the widgets sticky Sticky widgets will we visible even in TV mode One can have several sticky widgets and they can come from several different profiles 3 1 1 Levels of stickiness There are several levels of stickiness The default is not sticky Then we have normal sticky which means that the widget always is visible In addition we have the so called sticky on change This means that the widget usually is not there but pops up when there is a change on the widget s info For example the football widget pops up when there is a new goal the Twitter widget pops up when someone has twitred something the weather widget pops up when the forecast changes and so on 3 1 2 Set widgets sticky The configuration of sticky widgets is done in sticky widget mode By press
171. s JOU s 49 6pim Ap ns un J9DPIM DALIA k y0 P bpimy sJINELEPy UBN Aquasayip sja6pim 6ueup uo A33ns pue sjaHpim AyD Ns sjabpim euou JeW Pew 4Jabpimy UasoyD op luo1id JUUNI Jo SISHPIM e MOUS japow 1 DBpTM CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 104 8 2 3 New Use Cases We had to change the requirements and thus also the use cases They must now give the possibility to do any action at any time 8 2 3 1 TV Overview The overview of the TV interface Figure 8 2 describes the possible actions one can perform on the TV using the remote control This use cases does not really have any changes but the sticky widget function is put in a new graphical use case Figure 8 3 Figure 8 2 TV Overview TV Interface Set Top Box Choose profile CA y Content server User Choose sticky widgets Tum off widgets 8 2 3 2 Turn the Widgets On Off This use case Table is pretty much unchanged It is only altered to fit with the new modes in widget mode The use case explains how the user can turn on and off the widget based Internet on TV solution 105 8 2 SPRINT 4 RESULTS Table 8 2 UCTV 1 Use Case UCTV 1 Description Turn on off the widget mode Requirements e F1 1 e F3 1 Actors e User Assumptions e Embelir s Internet on TV solution is installed e User has a controller that is compatible with the system Steps 1 User pr
172. ser presses the OK button one more time and the widget will be shown as sticky on change To make the widget not sticky again the user presses the OK button a third time The widget will then be shown as not sticky and the user is back to where he she started before making the widget sticky After making a widget sticky not sticky the user can just repeat the steps to choose more widgets as sticky not sticky If the user wants to choose a sticky widget from a different profile he she can use the lt and buttons to choose the preferred profile Table 8 3 and then repeat from step 2 to select more sticky widgets When the user has selected all the sticky widgets he she wants he she presses the W button and the widgets that are not sticky will disappear while the sticky widgets will appear on the screen except for the sticky on change widgets which only appears when their content changes This use case is also a graphical use case Figure 8 3 8 2 4 Architecture In software development the later a problem is solved the more expensive it is to fix it Therefore it is important to have the architecture more or less correct One way of doing this is to have user scenarios on the different aspects that are important for the system For our project the factor that is emphasized is the usability The system needs to be easy to use or else it will have the consequence that no one will use it The system is something that are new to the custom
173. sprint affected the development process for this sprint The customer were not able to be at the sprint review meeting due to sickness The consequence of this was that we were not able to show any 87 6 3 SPRINT 2 EVALUATION of the progress during Sprint 2 We had some email contact so that the customer were aware of what have been done and that they were able to give feedback Below are what we found positive and negative about the Sprint 2 The burn down chart for the Sprint 2 Figure 6 8 represents the planned hours for the sprint and the actual hours spent for the sprint For Sprint 2 this fits very well with what we planned A reason for this is that we as a group have decided to have meetings four times during the sprints were we will be able to meet and work together We did not have any sickness or any other problems during this sprint Everyone attended the meetings according to what was planned The burn down chart does not show what the hours are spent on but we can see that we have used the estimated hours for Sprint 2 Positive e We finished most of our goals e We had daily scrum and no one were late for meetings e We updated the report during the sprint e We started implementing the demo Negative e We evaluated Sprint 1 a little late so it did not affect this sprint much e We did not reach our goal for architecture but we started implementing the demo e Customer was sick so we did not get to have a meeting
174. t WidgetProfile gt getContent String main String updateContent String removeContent id int widgets ArrayList lt Widget gt pinProtected boolean getWidgets ArrayList lt Widget gt setSticky boolean setWidgetsVisibility boolean setSelected boolean checkPin String adjustVisibility boolean WeatherWidgetGUI OtherWidgetGUI 7 2 4 Implementation In this sprint we expanded the functionality of the demo to include the con cept of profiles The user can scroll through the different profiles and set widgets from one of them as sticky We expanded the widgets from being merely empty JFrame s to having background images and some content and we started to develop a football widget that is to display the current score of ongoing football matches The intended purpose of this widget was to demonstrate the sticky on change feature With these additions and changes to the demo the application had been expanded to the following classes MainWidgetGUI Widget WeatherWidgetGUI OtherWidgetGUI WidgetProfile and PassCodeBox Figurel7 4 The MainWidgetGUI remained mostly the same with only slight changes In stead of containing all the widgets it now contained all the profiles We also added an instance of PassCodeBox to the MainWidgetGUI class which basically were a JFrame with a JLabel and a JTextField used for entering a pin code before be ing allowed to enter a pin code protected profile The Widget class held all the methods tha
175. t is still a microcontroller Because of its shortcomings in processing power and memory many operating systems are still nothing but a distant dream An example is Windows Vista which certain personal computers have trouble running Both Linux BSD Solaris and Windows XP should run fine 43 3 7 ALTERNATIVE MICROCONTROLLERS Table 3 5 Evaluation Criteria Grades Grade Letter Integer Description Good G 5 The solution covers all aspects of this criterion Decent D 2 The solution covers some aspects of this criterion Bad B 0 The solution covers none of the aspects of this criterion 3 7 3 Evaluation Criteria We have run an evaluation of the most important criteria for choosing a microcontroller comparing how well the microcontrollers fulfill these criteria 3 7 3 1 Priority The priorities of the criteria Table 3 4 describe how important that specific criterion is We have assigned each priority a number to easier calculate the best solution Table 3 4 Evaluation Criteria Priorities Priority Letter Integer Description High H 5 The criterion must be met to satisfy the customer s demand Medium M 3 The criterion should be met to satisfy the customer s demand Low L 1 The criterion should be met but not have priority 3 7 3 2 Grades We give each microcontroller a grade per criterion Table 3 5 depending on how well the controller fulfill t
176. t normally there Pushing the W button takes you to the widget mode Here most of the buttons works as normal except the numeric buttons and the navigation CHAPTER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN 58 panel the arrays and the OK button The W button takes you back to the TV mode TV Profiles When first entering the widget mode the widgets from the default profile are loaded Figure 5 2 We have yet to decide precisely what the default profile is Probably it will be shipped with a default profile with widgets with for example local news and weather Then premium users can add new profiles and change which is the default on the web page By using the lt and buttons the user can change the profile It will slide through the profiles loading the widgets as we move along When it gets to a password protected profile it asks for a PIN code Figurel5 3 This is entered through the numeric buttons and the OK button is hit when the code is finished If correct it loads the profile Figure 5 4 If not it asks for a PIN again If this is not the profile you are trying to open just scroll to next profile with lt or TV Sticky Widgets When pushing the OK button in normal widget mode you get to choose a sticky widget Figure B 5 A sticky widget is a widget that will stay put even when you go back to TV mode When entering this little sticky mode the first widget is marked You scroll through the widgets by A a
177. t profiles 4 tirilane tirilane 2 4 Sketches 4 larsmaha larsmaha 2 4 1 Remote control 2 larsmaha larsmaha 2 4 2 TV with widgets 2 larsmaha larsmaha 3 ARCHITECTURE 3 1 Logical View 44 mortjohn mortjohn jarleerd boron garnaas larsmaha 5 Class diagrams 32 mortjohn mortjohn jarleerd boron 3 1 3 Sequence diagrams 12 garnaas garnaas larsmaha 4 IMPLEMENTATION 4 1 Mock Up 32 jarleerd jarleerd 4 1 1 Widget window 32 jarleerd jarleerd x MISCELLANEOUS X 1 Description of SWOT boron boron X 2 Requirements tirilane tirilane X 3 Backlog tirilane tirilane SUM 96 79 6 2 SPRINT 2 RESULTS 6 2 Sprint 2 Results The sprint results are the internal documentation of the work this sprint Code is not included In this sub chapter we will discuss the different tasks a user can perform in the web interface as well as on the TV We will also describe the design of the interaction between the different parts of the sys tem 6 2 1 Scenarios We have created scenarios of possible use These help us imagine how the system will be used and thus creating the system in accordance so that it will be as simple to use as possible They are also used to check that there are no parts of the system that are ignored The scenarios consist of the steps necessary to use the widgets So if our system can do everything that is done in the scenarios then nothing is forgotten And as our system can do what is described in the scenarios and the s
178. t the early phases By doing so bugs are found easily in the early stage at a project This resulting in time saved and the project as a whole will benefit Because of its well built structure it also makes things easier for the team concerning what will be issued at any time One last argument of why the waterfall method is a great model is that it emphasizes documentation such as requirement documentation and design documentation This resulting in new team members having no difficulties of adjusting and familiarize with the work already done If a team member for some reason is to get sick the rest of the group can easily catch up by reading the documentation The main critique given to this methodology is the assumption of per fecting each phase before starting a new phase The need of getting all the requirements from the customer before having a prototype can prove to be difficult Otherwise the waterfall method is considered a good method and is common all over the world 47 3 8 ALTERNATIVE LIFE CYCLE MODELS Figure 3 7 Waterfall Method an 3 8 1 2 Scrum The Scrum methodology is an agile development method that has become more and more popular It is an iterative method that contains different roles Typical primary roles are the project owner the Scrum master and the team itself Typical sub roles can then be the chief in quality of assurance a secretary and a person being in charge of all technical issues The wor
179. t were common to all types of widgets Basically it CHAPTER 7 SPRINT 3 IMPLEMENTATION PART I 96 were the same as the WidgetGUI class but without the Graphical compo nents WeatherWidgetGUI and OtherWidgetGUI extended the Widget class and held the content specific to their respective types of widget Lastly we implemented the sticky on change feature When the application were in TV mode and there was a change in a widget in sticky on change mode the widget displayed for a few seconds before disappearing again Since none of our current widgets ever changed we also added a change button to invoke the change event of a sticky on change widget When a user entered widget mode he could scroll through the different profiles if the profile were pin protected he had to enter a pin before the widgets were displayed When at the wanted profile the user could enter selection mode as before scroll through the widgets and set them as sticky or sticky on change To make it even more clear which widgets were selected and which ones were not we reduced the opacity of the widgets that were not selected to 50 as it were sometimes difficult to see the difference when at 70 7 3 Sprint 3 Evaluation In this section we discussed how the sprint went and how the evaluation from last sprint affected the development process for this sprint For the third sprint we managed to follow the planned hours Figure 7 5 The reason for this is that we have four week
180. t will work as a view to show the widget on the screen Each of the different Widgets will have a WidgetModel which get the content data from the server to the local system that is on the set top box The WidgetModel will in practice be a local copy of the WidgetModel that is on the ContentServer The ContentServer will therefore also serve as a model for the application The ContentDownloader and the ContentReceiver is on the ContentServer and will be in control of the content They will also work as a link with In ternet and fetch data to the different widgets There must be a link between the WidgetModel and the ContentServer so that the information can be pushed and pulled for the different widgets In addition we will have the ConfigurationServer which is also a interface for the WidgetApplication to work as a link between the web page and the WidgetApplication When you edit the configuration server this should be pushed out to the Profile and then be visible on the TV screen Figure 8 7 Logical View of the System interface ConfigurationServer 8 2 5 Usability Usability is a term for how easy a system works when people are to do a specific task The term is frequently used in human computer type of interactions Shneiderman and Plaisant 2004 Wikipedia 2009c Having good logic behind the system as well as clarity and elegance of the graphical user interface are key terms concerning good usability The primary notion
181. te small already we did have and tried using these guidelines This resulting in an easy and well structured system which is also user friendly 8 2 6 Usability Testing In the next sprint we will perform a usability test Here we prepare for this test Appendix FF There are three tests one depending on the other Basic use is neces sary to complete all three tests and Profiles is necessary to complete Sticky widgets Basic use A normal user will only be able to turn the widgets on and off using only the default profile that shipped with the system Table F 1 Profiles A premium user should be able to switch between different profiles including secured profiles Table F 2 Sticky widgets A premium user should be able to set widgets sticky sticky on change and un sticky The sticky widgets shall be chosen from many different profiles Table F 3 CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 118 8 2 7 Implementation After presenting the demo for our customer we found that we had put to many limitations in place What needed to change were to allow for a user to set widgets from different profiles as sticky at the same time To support this we also had to change the demo to allow a user to change profiles after entering selection mode as well The customer also had reported problems with the demo not working properly when they used it in their presentation mainly the setting of transparency did not always work and some t
182. terface which is used by the hardware units requiring higher performance such as the hardware video de coders and the CPU The set top box also has a second memory that it uses as flash memory It is also used for peripherals and allowing the exchange of data between two STi7109 chips In addition it can connect to a hard disk drive either through the serial ATA Advanced Technology Attachment interface or through the USB 2 0 port Video Streams The STi7109 demultiplexes decrypts and decodes HD High Definition or SD Standard Definition video streams with associated multi channel audio The video is output to two independently formatted displays both a full resolution display intended for a TV monitor and a downsampled display intended for a VCR or DVD R The display connection can either be analog through the DACs Digital to Analog Converter or digital through a copy protected DVI Digital Visual Interface HDMI High Definition Mul timedia Interface STi7109 can take digitized analog programs as input for reformatting and display Graphics The chip also includes a graphics rendering and display capability with a 2D graphics accelerator three graphics planes and a cursor plane Thanks to a dual display compositor it is possible to mix graphics and video with independent composition for each of the TV and VCR DVD R outputs CHAPTER 3 PRELIMINARY STUDY 40 It is also possible for seven different transport streams from differe
183. the project 2 1 Project Mandate Here follows the project mandate an overview of the project 2 1 1 Overview Implement Internet on TV as widgets that people can use to read news and check the weather forecast among other things with a simple push of a button 2 1 2 Project Name The project name is Internet on TV 2 1 3 Project Sponsor The customer for this project was Digiboards AS which is the leading sup plier of web based information broadcasting in digital screens also referred to as Digital Signage or In Screen TVs Digiboards has developed the mar ket s first complete web based enterprise solution for marketing on TV screens 3 CHAPTER 2 PROJECT DIRECTIVE 4 Digiboards complete solution includes all of the necessary tools needed in cluding an animation toolkit for creation of digital posters and screen designs Their solution is so simple to use that representation and changes in the ad vertising can be done online by the customers themselves This without going through advertising agencies 2 1 4 Stakeholders We have the contact information of the stakeholders both the group super visors and customers in Appendix A 2 1 5 Measurement of Project Effects There were no specific measurement of project effects The effects were more roughly measured by e The progress of the project backlog e Whether we and the customer had the same views on the product e Whether we agreed on the final prod
184. till not totally decided For now we are just placing them wherever they are when they are not sticky We also thought of making a 3 x 3 grid on the screen and use the numeric buttons to choose grid square right after they have chosen the widget to be sticky As in first using the arrows to mark a widget push OK to make it sticky and then a numeric button to place it Another solution is to place the sticky position of each widget on the web portal Or just keep the usual position For now we have ignored this decision The default is the usual position Anything more is left for another sprint 5 2 2 TV Use Cases Here follows the use cases for the television First is a graphical overview of what is possible then more detailed textual use cases of these possibilities 5 2 2 1 TV Overview The overview of the TV interface Figure 5 8 describes the possible actions one can perform on the TV using the remote control 5 2 2 2 Turn On Off the Widget Dock This use case Table 5 2 explains how the user can turn on and off the widget based Internet on TV solution Embelir s Widget Dock When a user is watching TV he she can easily press the W button and the widgets in the default profild will appear on the screen That means that the user can still watch TV while checking the weather news and other stuff To turn off the Widget Dock the user simply presses the W button one more time and all the widgets disappear from the scr
185. tion The following information was given to the participant during the test It includes some information about the system including a simple manual and the tasks User Evaluation Introduction Welcome to an evaluation of Internet on TV You are here to help us improve our end product Throughout the evaluation we urge you to think out loud letting us know how you attack the different tasks Imagine this computer as your own television When starting the different tasks you are watching TV The keyboards is your imaginary remote control and you can only operate the buttons that are listed below About the System The system an be in three different states The initial state is TV mode where the user watches regular TV You also have the Widget mode and the Sticky widget mode Before you start there are some buttons you need to be aware of W button Enters exits widget mode lt and Flips through the different profiles A and Y Scrolls through the different widgets in the selected profile This can only be done when in Sticky widget mode Please notice there are only two different profiles in this test O button Read below then see Figure F 1 You might want to study it for 30 seconds to understand it completely e Enters Sticky widget mode All widgets that are not selected will be shaded out e Selects widget as sticky Border will turn green when this is done e Sets widget to Sticky on change Border will turn
186. tion with the desktop RIAs have a customiz able user interface and desktop integration en abling branded experi ences Continued on next page CHAPTER 3 PRELIMINARY STUDY 22 Feature RIAs in the Browser RIAs on the Desktop Applications have lim ited local storage which the browser can destroy Data storage Applications have unlim ited local storage and ac cess to a local database plus encrypted local stor age Table 3 2 Operating Systems with AIR Support Windows Windows Vista SP1 Windows XP Tablet PC Edition SP2 and SP3 Windows XP SP2 and SP3 Windows 2000 SP4 Windows 2003 Server Windows Vista R Home Premium Business Ultimate or Enterprise REQUIREMENTS MINIMUM RECOMMENDED Intel Pentium III 1GHz or faster Pentium 4 2GHz or faster 512MB RAM 1GB RAM Mac OS X Mac OS X 10 4 Tiger Mac OS X 10 4 Leopard Mac OS X 10 4 Snow Leopard REQUIREMENTS Intel Core Duo 1 83GHz or faster PowerPC G4 1GHz or faster Linux Fedora 8 and later Ubuntu 7 10 and later OpenSUSE 10 3 and later REQUIREMENTS MINIMUM RECOMMENDED Intel Pentium III 1GHz or faster Pentium 4 2GHz or faster 512MB RAM 1GB RAM XTerm present AIR also enables the developers to make applications capable of offline operations The application will synchronize with the web application when a connection becomes available T
187. tion with the web servers The rest is up to the developers that are going to implement the final solution We will go through the architecture for the system in detail and figure out what is the best solution for the problem given The application will be based on the Model View Controller MVC ar chitectural pattern Wikipedia 2009d which isolates business logic from input and presentation permitting independent development testing and maintenance of each The MVC pattern implements the tactic for usability to separate the user interface from the rest of the application and supports the modification of the user interface This is one of the main reasons for choosing the MVC pattern In addition we will need to combine it with the client server architectural pattern to have the relations with the application configuration server and content server In addition there will be need to have an architectural design for the web application The MVC pattern is often used in web applications In our system Figure 8 7 we have the WidgetController which will be the local controller according to the MVC pattern The WidgetController will define what the system should show on the TV screen The WidgetController CHAPTER 8 SPRINT 4 IMPLEMENTATION PART II 114 is connected with the Profile which also works as a controller to see the different Widgets There can be from 1 to N different Profiles and from 1 to M different Widgets Each separate Widge
188. tions as well as an interactive Flex application debugger RIAs created with Flex can run in the browser using Adobe Flash Player software or on the desktop on Adobe AIR the cross operating system runtime This enables Flex applications to run consistently across all major browsers and on the desktop By using AIR Flex applications can now access local data and system resources on the desktop 3 1 2 4 Ajax Asynchronous JavaScript and XML Garrett 2005 Wikipedia 2009b is a group of interrelated web development techniques on the client side used to create interactive web applications or RIAs With Ajax web applications can retrieve data from the server asynchronously in the background without interfering with the display and the behavior of the existing page With Ajax the idea is that you get a richer and faster user experience Properly implemented a web page can become a RIA Most extremely popular web sites use Ajax to some degree As told before Ajax is not a technology in itself but use the following technologies e XHTML and CSS for the presentation e The Document Object Model DOM for dynamic display of and in teraction with data e XMLHttpRequest XHR for exchanging asynchronously data between browser and server thereby avoiding page reloads e XML and XSLT for the interchange and manipulation and display of data respectively e JavaScript for binding this technologies together JavaScript is not the only client
189. tons as shortcuts For example 99 different profiles And in a certain state in the widget mode if one pushes say 4 and 2 one jumps to profile 42 Here we do have the problem of not jumping to first profile 4 and then profile 2 but this is already solved This would work in the same way as channel changing works which waits a certain time before jumping in case new buttons are pushed Should one be able to password protect and how We decided to make it possible to password protect the profiles in case of widgets with Facebook Twitter or other social media These are normally under password protection and should continue to be so One might not want to share one s social media with one s parents and siblings However now one can give the password at the web portal and just have one password to access all of the password protected media This password is of course a PIN since we only have numeric buttons available And in good PIN style 4 digits Sticky widgets Digiboards wanted sticky widgets That is widgets that still is shown even though the rest of the widgets are gone How many We thought about having both one and multiple wid gets but we decided on multiple That is because the users might want more than just one widget to stick and why not give them the possibility if we can CHAPTER 5 SPRINT 1 HIGH LEVEL SYSTEM DESIGN 66 Where shall they stick to the screen Where to place these wid gets are s
190. uct e Whether we got a working prototype e How well we described the system 2 1 5 1 General Terms This solution was to be made for a microcontroller used for television or set top boxes More specifically on either the STi7109 microcontroller or the Intel CE 3100 microcontroller Our prototype were implemented on a x86 personal computer 2 1 5 2 Planned Effort TDT4290 yields half a semester work load This meaning 312 working hours per person or 24 working hours per person each week This was 312 x 6 1872 person hours in total and 24 x 6 144 person hours on a weekly basis 2 2 Project Plan This section covers the project plan which regulated the administrative part of the project 5 2 2 PROJECT PLAN 2 2 1 Phases We had 5 sprints each of one week Thus we got the phases e Project management e Lectures and self study e Planning e Prestudy e Product backlog e Sprint 1 e Sprint 2 e Sprint 3 e Sprint 4 e Sprint 5 e Conclusion e Evaluation e Presentation and final demonstration For more information see the Gantt diagram in Figure in Appendix 2 2 2 Main Tasks We have eight main tasks during this project It is the project management the lectures and self study the project planning the prestudy the product backlog the sprints the evaluation and the presentation 2 2 2 1 Project Management Project management followed us throughout the project It consisted of meetings minutes coordination planning
191. uence of not getting the microcontroller which lead to more prestudy for the design and architecture We also used more time on the design and less time on the programming and implementa tion since the project changed Except for this it seems that we have followed the plan and the estimated workload well Figure 11 2 Actual vs Planned Effort for the Different Phases Actual vs Planned Workload 450 400 350 300 250 2 200 150 100 50 0 m Planned A c m Actual FF SF SF SF g g lt xS e S lt y lt ge q lt gt g q g lt D gt g N S g d e gt e lt gt oy gt e lt S q O gt lt q lt lt So amp S o lt a q 11 1 3 The Project We did some mistakes during the project but managed to salvage it before it was too late What We Have Done Well We made most of the milestones in time Table 2 1 We were late with the preliminary study and thus we were also late with the product backlog This was because we was waiting on the microcontroller to arrive and had to stall the time We had to re plan the sprints too but this was because we changed their number and length Thus we also re planned them to earlier than their original date Even though the whole project was changed due to a non arriving mi crocontroller we managed to finish the new project All this made it quite difficult to plan from the
192. up Language An initiative from the W3C defin ing an extremely simple dialect of SGML suitable for use on the World Wide Web die net 151 GLOSSARY XSLT XSL Transformations A declarative XML based language used for the transformation of XML documents into other XML documents The original document is not changed rather a new document is cre ated based on the content of an existing one The new document may be serialized output by the processor in standard XML syntax or in another format such as HTML or plain text XSLT is often used to convert XML data into HTML or XHTML documents for display as a web page Wikipedia Yahoo Widget Engine Konfabulator A free application platform for Mac OS X and Microsoft Windows The software was previously called Konfabulator but after being acquired by computer services company Yahoo it was rebranded The Yahoo Widget Engine Konfabulator has a very flexible application programming interface API based on JavaScript with many features useful to developers Wikipedia GLOSSARY 152 References Adobe Systems Incorporated Browser vs Desktop 2009a Online accessed 24th September 2009 URL http www adobe com products air comparison Adobe Systems Incorporated Create and deliver rich interactive content 2009b Product information Online accessed 24th September 2009 URL http ww adobe com products flash Adobe Systems Incorporated Create engaging cross platform ri
193. we are afraid will happen Consequences explains why this is a problem The letter at the start of this column describes the severity of the consequences H High M Medium L Low Prob or Probability describes the probability for this risk to happen The letter grades are the same as for the consequences Strategy and Actions describes what we must do about it We can either accept it reduce the risk avoid it or approve the problem and try to make the best out of it How we will do all this is also described Deadline is the date this risk will stop being a risk and either have hap pened or no longer be a problem Most of the risks will be an issue during the entire project C 1 APPENDIX C RISK ANALYSIS C 2 Responsible is the person that is responsible for this risk either because of one s role in the group or of personal reasons Problem describes whether or not this risk actually was a problem Actions is a descriptions of what we did for the risks that came true ES Table C 1 Risk Analysis Part I 19730 uoe IJEALJO UL ure 1 oY JO 3s ey Suoure poour peq lqissod pue uop yom oy JO 1938 pue apqissod se uoos Ayyenb rood saur uew qo oid yoofoid se do d oy YIM ve pe p yofoid y qof 11979 op you ON UY o y1OUL a 90YM qoid 979 SAJOS ploaw T PU 09 JD9HIQG H op sioquiour urea TV 6 19439303 YOM pue Ay1s s ur
194. wing downwards like a waterfall By using the waterfall method one must assume 3Which is indirectly in the evaluation criteria by supporting Adobe AIR and Flash 4Tt is only for selected customers and we are not one of them Appendix I CHAPTER 3 PRELIMINARY STUDY 46 that the project is fully specified and that the different requirements do not change during the project In the original Waterfall the phases are as follows in order Requirement specification All the requirements should be determined and specified Design phase Requires that phase one is fully completed All parts of the system should be designed having a complete system design when the phase is over The implementation phase Having the entire project realization of the application ready it should be implemented in this phase Integration phase Whenever the system is fully implemented it has to be integrated into the environment it is supposed to run in Test phase When we have come this far the test phase should make sure there are no bugs what so ever in the system Everything that is possible to test should be tested Installation phase In the sixth phase the system is to be installed at the customers location Maintenance This last phase is to make sure the system is working after it is installed This can take a huge amount of time depending on the previous phases being done properly The waterfall method can be an OK model if one focuses a lot a
195. with them at the end of the sprint 6 3 1 Conclusion We finished the use cases and the functionality description but we did not finish the architecture Consequently this will be a part of Sprint 3 instead We did however start implementing the demo that was suppose to be a part of Sprint 3 Otherwise the sprint went as planned CHAPTER 6 SPRINT 2 DETAILED SYSTEM DESIGN 88 Figure 6 8 Sprint 2 Burn Down Chart Burn down chart Sprint 2 Burned down Balance Daily Weekday Day Planned Actual Planned Actual Completed 0 96 96 N A Wed 1 20 18 76 78 18 Thur 2 40 48 36 30 48 Fri 3 6 0 30 30 0 Sat 4 0 0 30 30 0 Sun 5 0 0 30 30 0 Mon 6 18 12 12 18 Tue 7 12 0 0 12 120 i Planned Actual CHAPTER 7 Sprint 3 Implementation Part This is the documentation of the progress results and acquired knowledge during Sprint 3 of the project This third sprint took place between 15th and 21th October 2009 7 1 Sprint 3 Planning The Sprint 3 planning is a summary of the meeting we had on Wednesday 15th October The customer was not able to attend this meet due to sickness We decided to make the Sprint 3 backlog and email it to the customer for approval In this sprint we had to continue on the architecture because we did not finish it in the last sprint We decided to continue implementing the demo Having completed the basic appear and disappear functionalit
196. y in the last sprint we now focused on the more advanced features We also discussed whether or not to do a full usability test As feedback from the customer from Sprint 2 they wanted to add some features This was the possibility of sticky widgets to be displayed only when the contents change Also they wanted the possibility of selecting profiles by shortcuts Taking this into account we had to change some of the earlier work we had done 89 CHAPTER 7 SPRINT 3 IMPLEMENTATION PART I 90 7 1 1 Sprint Backlog The tasks to be performed this sprint are together with the customer chosen from the product backlog Table and copied into the sprint backlog Table 7 1 Table 7 1 Sprint 3 Backlog Item Description Est Responsible Assigned Effort Mem bers 3 ARCHITECTURE 3 1 Logical View 12 mortjohn all 3 1 2 Class diagrams 12 mortjohn all 32 Development View 24 mortjohn all 3 2 1 Overview 12 mortjohn all 3 2 2 Package diagram 12 mortjohn all 4 IMPLEMENTATION 4 1 Mock Up 48 jarleerd jarleerd boron 4 1 1 Widget window 24 jarleerd jarleerd 4 1 2 Widget content 24 boron boron 5 USABILITY 5 1 Usability Testing 16 larsmaha all 5 1 1 Discussion of necessity 16 larsmaha all SUM 100 7 2 Sprint 3 Results The sprint results are the internal documentation of the work this sprint Code is not included 7 2 1 Sketches We have made sketches
197. you Answers Table F 4 Answers for the Summary Questions Person What do What If you What Other you feel was pos could widgets Com about itive change were im ments what about one portant you have the situa thing to you seen tion What would it be Male 20 I never un Nice I never like Football The O 25 good derstood overview manuals results of button was techno the use I would course confusing logical of the O change the Maybe alas is was skills button system to watch too involved in Where give in so many did it say structions actions I should directly on click it to the screen enter a profile Continued on next page APPENDIX F USABILITY TESTING F 8 Person What do What If you What Other you feel was pos could widgets Com about itive change were im ments what about one portant you have the situa thing to you seen tion What would it be Female I was un Easy to get Maybe A calendar 20 25 certain around You have where I good tech how the now come can see all nological sticky to Harald s my plans skills function profile worked Male To be I could I would News 50 low honest I see the get a walk weather mediocre did not un weather in through techno derstand Trondheim function logical much at today skills all I felt completely lost
198. you push and hold the widget button for three seconds By doing so all the widgets in sticky mode should be reset to normal mode 3 Give informative feedback For every operation the system should give some sort of feedback as for the user to know whether or not the operation was successful This being one of the core points from Schneiderman and one of our main priorities concerning usability For example while choosing what widgets are to be sticky all other widgets are faded out making it obvious what widget the user is selecting Another example is if a pin code is needed to enter a profile and a wrong pin is unfortunately typed This resulting in the user getting a message about this and is asked to retype the correct pin 4 Design dialog to yield closure In sequences with operations it should be organized into groups with a beginning middle and an end The informative feedback should be given at the end of each group As for our system this point is to a certain extent not needed The system being as little complex as it is it does not have any sequence of actions We chose to give feedback at anytime instead of breaking the actions into different groups 5 Offer simple error handling Design the program such as the user cannot make serious errors If an error occurs the program should de tect it and offer simple comprehensible mechanisms for handling the error In such a small system as we got there won t be any error han d

Internet on TV - Department of Computer and Information Science

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