Value Network Tool: A tool for Modeling, Simulating and - E
Contents
1. 12 Social Network Image Animator http www stanford edu group sonia 142. It appears a window with the additional attributes that an element can have It is similar so much for the case of participants what for the case of offerings Priority This choice is appeared only in the case of participants It appears a window that a user inserts the priority of the participants This is very useful especially in the case that there is connection between the VNT and the IBM WebSphere Business Modeler 3 6 More Features When the user selects a vertex will notice small handles rectangles that you can grip for sizing in the vertex s corners and along its sides Similarly the selection of an edge results in handles at the source and target of that edge These handles make it possible to resize the vertex or edge Accomplish that task by using the mouse to select and drag a handle The vertex or edge resizes in that direction For 11 example resize the vertex by selecting that vertex gripping the handle in the lower right corner and dragging the handle downward and to the right He also can select a combination of vertices and edges by holding down Shift during the selection process If he accidentally selects a vertex or edge that he does not want to be included release Shift and press Ctrl to deselect that vertex or edge Resizing or dragging a selection is accomplished through a cell handle A cell handle uses means such as performing a color change and showing grayed edges in their new locations to provide users
3. 9 9 First Model Second Model Third Model Figure 9 Calculation Menu First Model Model for the data calculation Second Model Model for the data calculation Third Model Model for the data calculation 3 3 6 Help Menu Description Calculation Menu contains the attributes that concern the way which the user will be helped Moreover offers some manufactured information see Fig 10 VNT Help About TSL About VNT About VNT Team Figure 10 Help Menu VNT Help It constitutes one complete menu with regard to the attributes of tool Users could send if they want e mail in the constructional team with regard to any queries that concern the tool or for any pointing out of problems About TSL It constitutes information for the Transformation Service Laboratory About VNT It constitutes general information for the tool About VNT Team It constitutes information about the constructional team 3 4 Status Menu Description The Status Bar contains some basic information about the laboratory that the implementation took place The most important part of the Status Bar is the memory usage monitor The monitor shows the memory usage 1MB in the figure and the memory allocated 2MB in the figure by the application Value Network Tool created in Transformation Services Laboratory 1 2Mb Figure 11 Status Bar 10 3 5 Elements Description Follow a description of attributes of each eleme
4. an edge label or a group by holding down the Ctrl key while dragging the mouse 4 Construction Technologies For the tool creation it was used the Java version 1 5 5 Furthermore the graphical interface constructed with the JGraph API 6 11 The advantages that offer this construction technology are the following e Construction facilities e Simple process of management control and debugging e Collaboration with other applications e Extension possibility 5 Functional Requirements The system requirements are summarized below e System Directness With the main buttons immediately available in obvious point of window it is ensured that the user will select fast the desirable energy that he wants to fulfill 12 e Program Learning The icons and the descriptions help the user to become familiar with the program in a short time Also the existence of help for each operation ensure the fast familiarization with the application e Functionality The tool will remain functional for enough time according to the existing theory of value networks e Access and use Is not required access code or any license consequently is provided free access and use in all users of VNT e Environment It is used a highly supportive interface with logical and clear structure e Extensiveness The tool can be extended easily and fast This provides the possibility of adding a lot of new attributes 6 Execution The execution of tool b
5. it will not exist restriction in the nested depth and consequently is increased the size of Value Network that is supported 13 References 7 8 9 N S Caswell C Nikolaou J Sairamesh M Bitsaki G D Koutras and G lacovidis Estimating value in service systems A case study of a repair service system IBM Systems Journal 47 No 1 2008 http www research ibm com journal sj 471 caswell pdf V Allee The Future of Knowledge Increasing Prosperity through Value Networks Butterworth Heinemann Boston 2002 V Allee Reconfiguring the Value Network Journal of Business Strategy 21 No 4 2000 http www vernaallee com value_networks Reconfiguring_the_Value_Network pdf V Allee Understanding Value Networks Verna Allee Associates http www vernaallee com value _networks Understanding_Value_Networks html The Java Language Specification Third Edition Sun Microsystems http java sun com docs books jls third_edition html j3TOC html Tools of the Trade Building Graphs with JGraph http www samspublising com articles article asp p 431106 amp seqNum 1 amp rl 1 JGraph User Manual http www jgraph com pub jgraphmanual pdf JGraph Source Code Distribution http www jgraph com pub jgraph latest lgpl src jar JGraph Community Help Forum http www jgraph com forum 10 JGraph API specification http www jgraph com pub api 11 JGraph Frequently Asked Questions http www jgraph com fag html
6. or go to File gt Open and choose the name of the value network file to open Make sure to have saved all previous work before opening a new value network file e Save For the storage of value network is allowed the choice of particular button or alternative the following path File gt Save Afterwards becomes the choice of the name and the file saved destination After the file save the name of the window is automatically been changed If the file has already been saved one time the previous steps will not be executed e Save As For the storage of value network is allowed the choice of particular button or alternative the following path File gt Save As Afterwards becomes the choice of the name and the file saved destination After the file save the name of the window is automatically been changed Print For the printing of value network is allowed the choice of particular button or alternative the following path File gt Print Afterwards the user is free to determine the printer that he wants to use allowing him at the same time to modify it in the way he wants even if it is part of a network In concrete cases VNT can also export the drawn Value Network in other formats as pdf PostScript etc 5 Undo For the undo the last actions is allowed the choice of particular button or alternative the following path Edit gt Undo 8 Redo For the redo the last actions is allowed the choice of particular button or alternative
7. the following path Edit gt Redo amp Cut Cut the selected item s To cut select the component s To select a component just click on the component To select a group of components drag the mouse to draw a selection square enclosing all the desired components Selected components will be highlighted Once the components are selected click on the copy icon or go to Edit gt Cut Copy Copy the selected item s To copy select the component s To select a component just click on the component To select a group of components drag the mouse to draw a selection square enclosing all the desired components Selected components will be highlighted Once the components are selected click on the copy icon or go to Edit gt Copy Paste Paste a copied or cut component s If there are some components previously cut or copy you can paste them by clicking on paste icon or going to Edit gt Paste and they will appear on the value network 4 Delete Delete component s To delete a component select the component and click the delete icon or press the delete button of the keyboard of go to Edit gt Paste If a group of components is selected all the components will be removed 4 Q Actual Size Return the normal scale of the value network To return to normal scale click on the actual size icon or go to View gt Actual Size q Zoom In Zoom in the value network To zoom in the value network click on the zoom in icon or go
8. with visual feedback on how a graph will look after the change has been made This feature is known as live preview The presence of groups within a graph affects the selection process When selecting a vertex or edge within a group the first mouse click on the vertex or edge selects the group the second mouse click selects the vertex or the edge If groups are nested within other groups it can take multiple clicks on the vertex or edge before that vertex or edge is selected You can select multiple groups vertices and edges by pressing Shift and clicking each entity If these entities exist within a rectangular area an easier way to accomplish this task involves marquee selection Marquee selection is a selection mechanism in which the user moves the mouse pointer to any location in the graph and presses a mouse button As he drag the mouse pointer he observes a rectangle known as a marquee that expands or contracts based on the direction of movement When he releases the mouse button the marquee disappears all groups vertices and edges completely within the marquee are selected Sometimes he will want to more accurately place a vertex an edge or a group during a drag operation by constraining the drag to horizontal and vertical movement In other words he does not want to drag diagonally That operation requires from him to hold down Shift while dragging the mouse The clone selection feature is the duplication of a vertex
9. Value Network Tool A tool for Modeling Simulating and Representing Value Networks Apostolos Zarras Computer Science Department University of Crete GREECE Zzarras csd uoc gr Abstract The evolution of service systems has changed economic structure towards a service oriented ecosystem combining social science and technology Service systems form networks in which value is created and captured by their members The rapid growth and the increased complexity of service systems raises many challenging issues in their design and improvement This document presents the value network tool which provides a range of graph drawing functionality visualization and interactions within value networks 1 Introduction The purpose of the Value Network Tool VNT is to provide a range of drawing functionalities in order to visualize and describe interactions within value networks In addition VNT provides value calculations based on the value analysis method which is proposed in 1 VNT provides an approach to calculate value for every participant or the total value of the network The benefits of understanding value networks are to determine which members are effective or not how values change how value networks evolve in the future how value networks may be replaced by other value networks that are perceived as more competitive how to quickly react to market changes how to improve networks competitiveness how do companies in a value network decid
10. be imported in the IBM WebSphere Business Modeler The interface consists of a central window with two toolbars one vertical and one horizontal one menu bar and one status bar The vertical toolbar contains buttons for the creation of participants and the connection between them while the horizontal contains all the commands available in the tool The menu bar offers the same operations with the two toolbars as well as some further operations for the xml export the tool connection with the IBM WebSphere Business Modeler and for the way the one participant influences the other 3 Components Description This section describes each component of VNT see Fig 1 http www 306 ibm com software integration wbimodeler 2 800 Value Network Tool File Edit View Insert Calculation Help 1 1Mb Value Network Tool created in Transformation Services Laboratory Figure 1 Screenshot of the Value Network Tool 3 1 Horizontal Toolbar Description The horizontal toolbar contains all these elements that are useful in the better management of Value Network see Fig 2 DA oleh el gt 6 6 198 Q Q a a Figure 2 Horizontal Toolbar New File Create a new value network Click on the new file icon or go to File gt New File New Instance Create new Instance Click on the new instance icon or go to File gt New Instance 3 Open To open a value network file click on the open icon
11. components will be highlighted Paste Paste a copied or cut component s If there are some components previously cut or copy you can paste them and they will appear on the value network Delete Delete component s If a group of components is selected all the components will be removed 3 3 3 View Menu Description View Menu contains the attributes that concern the way which the data of the tool are been portrayed see Fig 7 8 Actual Size foom In foom Out Group UnGroup Figure 7 View Menu Actual Size Return the normal scale of the value network Zoom In Zoom in the value network Zoom Out Zoom out the value network Group Grouping is the concept of logically associating components with one another Grouping involves one or more vertices or edges Once grouped the group component may be moved and resized like a stand alone component Ungroup Ungrouping the objects that previously has been grouped When the objects ungrouped can behave independent the one from the other 3 3 4 Insert Menu Description Insert Menu contains the attributes that concern the way which the elements are been inserted in the tool see Fig 8 Circle Rectangle Figure 8 Insert Menu Circle The circle represents the participants Rectangle The rectangle represents a nested value network 3 3 5 Calculation Menu Description Calculation Menu contains the attributes that concern the way which the data are been calculated see Fig
12. e whether or not to accept a newcomer and how a company decides which network to join These benefits are key questions that strategists planners and information technology professionals have to answer on a continuous basis today http vnt tsl gr 2 Graphical User Interface VNT creates a visual representation of a value network VNT uses shapes as circles rectangles and arrows single double Also supports standard editing functions as cut copy paste and delete drag and drop operations for drawing components and finally provides zoom functions The user is able to move components inside the editor to have a better positioning edit the size and the label of each component displayed undo and redo actions group and ungroup components and finally save and open value networks The tool provides the possibility of printing the value network that is been created The user is free to determine the printer that he wants to use allowing him at the same time to modify it in the way he wants even if it is part of a network In concrete cases VNT can also export the drawn Value Network in other formats as pdf PostScript etc The results are exported in xml which obey in concrete models and international standards In this way it can portray value networks that have not been manufactured with the particular tool This is very useful especially in cases of corporation among different tools Finally it can export suitably shaped xml which can
13. ecomes via the executable file VNT jar and with the use of command e java jar VNT jar from the running directory Alternative it can be also executed with the use of double click on the icon of VNT The execution requirements are the following e Existence of Java Virtual Machine is recommended publication at least 1 5 e Existence of functional environment in which runs Java Virtual Machine 7 Conclusion amp Future Work There are only few tools that deal with the design of value networks 12 This paper presents a brief description of VNT mostly in the field of the user interface and the interaction with the user a currently developed value network tool offering a wide spectrum of functionalities in modeling simulation and representation of value networks Another distinctive characteristic of VNT is that offers ready calculations based on mathematical and economical types The connection with other applications helps the user to familiarize with the whole business processes and business consulting The future work of tool it concerns mainly in the sector of depiction nested value networks The term Nested Value Network is reported in one entire Value Network which can find itself incorporated in some other The existence shape of rectangle helps in this creation It will be provided the choice of export Value Network With this choice it will open a new window in that will exist incorporated the interior Value Network Also
14. elected Items Import xml files that represent some elements been chosen from a value network This feature is useful for the elements import from a value network to another Export e Export to VNT XML Export xml files that represent a value network e Export to WBI Modeler XML Export xml files that represent a value network in a readable from the IBM WebSphere Business Modeler format 7 e Export Selected Items Export xml files that represent some elements been chosen from the drawn value network This feature is useful for the elements export from a value network to another Exit Exit from the tool The user can save the drawn value network if he has forgotten it 3 3 2 Edit Menu Description Edit Menu contains the attributes that concern the way which the data of the tool are been managed see Fig 6 Undo Redo Cut Copy Paste Delete Figure 6 Edit Menu Undo Undo the last actions Redo Redo the last actions Cut Cut the selected item s To cut select the component s To select a component just click on the component To select a group of components drag the mouse to draw a selection square enclosing all the desired components Selected components will be highlighted Copy Copy the selected item s To copy select the component s To select a component just click on the component To select a group of components drag the mouse to draw a selection square enclosing all the desired components Selected
15. he double arrow represents the double way connection between two participants It is usually used in order to declare that in collaboration between two participants both the source and the destination have at the same time cost and profit The icon that is meeting in the vertical toolbar represents the arrow that is activated the present moment User can change the activated arrow by clicking on it At the same time will be change apart from the arrow and the attributes that each arrow has The union between two participants becomes with the following way Provided that it has been selected the suitable arrow with the way that mentioned in the previous paragraph the user can just select the source participant and by keeping stepped the left winger key mouse he pulls the arrow to the destination participant When afterwards the left winger key mouse is been released the arrow will continue linking two participants Simultaneously it will have been created in the participants properties the elements that resulted from this union Remark in the case that the left winger key mouse is released before the union between source and destination participant has been placed then the arrow is been lost and does not exist union between two participants 3 3 Menu Bar Description Menu Bar contains all these elements that are useful in the treatment of elements of value network as well as in the calculation and export of data see Fig 4 File Edi
16. nt The description is similar even if the element is a participant of if it is a relation between participants offering Figure 12 Pop Up Menu Rename Properties Extra Info Priority Figure 12 Pop Up Menu In order to become changes in the attributes of some elements of value network the element must be first selected and afterwards be clicked the right key mouse Rename Change the name of an element As soon as it is activated the particular choice a window is appeared that asks from the user to place the new name After the new name insert the user click on the OK key to activate the change In the case that he clicks on the Cancel key the name remains as it was before In every case all the other elements are been informed about the results of this action Properties t appears a window with all the attributes of each element There are two different cases depend on the element If the element is a participant the user cannot change the participant attributes He only can observe the transactions that participant has with the other participants as well as total income expenses and profits of each participant If the element is an offering the user can change the data He can determine the prices that participants take Depending on the case if it is one way or double way relation he is determined also the extent of attributes In every case all the other elements are been informed about the results of this action Extra Info
17. t View Insert Calculation Help Figure 4 Menu Bar 3 3 1 File Menu Description The File Menu contains the attributes that concern the way which are been imported and exported the data from the tool see Fig 5 6 New File New Project Open Save Save As Print Import Export Exit Figure 5 File Menu New File Create a new value network file New Project Create a new value network project Open Open a value network file Choose the name of the value network file to open Make sure to have saved all previous work before opening a new value network file Save Save a drawn value network Afterwards becomes the choice of the name and the file saved destination After the file save the name of the window is automatically been changed If the file has already been saved one time the previous steps will not be executed Save As Save a drawn value network Afterwards becomes the choice of the name and the file saved destination After the file save the name of the window is automatically been changed Print Print the drawn value network Afterwards the user is free to determine the printer that he wants to use allowing him at the same time to modify it in the way he wants even if it is part of a network In concrete cases VNT can also export the drawn Value Network in other formats as pdf PostScript etc Import e Import from VNT XML import xml files that represent a value network e Import S
18. to View gt Zoom In q Zoom Out Zoom out the value network To zoom out the value network click on the zoom out icon or go to View gt Zoom Out E Group Grouping is the concept of logically associating components with one another Grouping involves one or more vertices or edges Once grouped the group component may be moved and resized like a stand alone component Click on the group icon or go to View gt Group T Ungroup For the ungrouping of objects that previously has been grouped is allowed the choice of ungroup button or alternative the following path View gt Ungroup When the objects ungrouped can behave independent the one from the other 3 2 Vertical Toolbar Description The vertical toolbar contains all these elements that are essential for the designing of value network In these elements are contained circles rectangles as well as single and double arrows see Fig 3 i Figure 3 Vertical Toolbar 5 Circle The circle represents the participants To entry the circle clicks on the circle icon or go to Insert gt Circle Rectangle The rectangle represents a nested value network To entry the rectangle clicks on the rectangle icon or go to Insert gt Rectangle Arrow The single arrow represents the one way connection between two participants It is usually used in order to declare that in collaboration between two participants the source has profit while the destination has cost ee Double Arrow T
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