| 摘要 |
PROBLEM TO BE SOLVED: To make processing regarding the of entrance qualification for respective membership services efficient when a user uses a plurality of membership services. SOLUTION: In a service management DB 52 on a server 42, affiliation conditions for services are stored. A certificate management part 51 selects services that a user can use of the services according to the affiliation conditions of the respective services and displays them, Instead of the server for the respective services, information on other services that the user who desires to join already join in is referred to, thereby examining the entrance qualification of the user. According to the affiliation conditions of the respective services, the relation between a new affiliation condition and the number of users is simulated. |
