1. 20 2. EE ves WBS Work Breakdown Structure EE 3. ES sus ISMS Information Security Management System JIS Q27001 2006 2006 5 ISMS Ver 2 0 GtoB G to B Government to Business EC G toB G to C Government to Consumer G to G Government to Government c x e 2004 4. MTTR MTTR FPTO728 20 P 244 CE 5. 80 20 20 EE FAsis RASIS Reliability Availability Serviceability Integrity Security 5 Reliability Availability Serviceability Integrity Security MTBF MTBF MTBF MTBF MTTR 6. ES i TCP IP IP PING Packet InterNet Groper PING IP FPT0728 20 P 260 20