| 摘要 |
PROBLEM TO BE SOLVED: To provide a user database server capable of concentrically managing user information used in provision of a service via a network for reducing labor of each service providing server and each user. SOLUTION: This user database server is provided with a user database 173 storing user information used in a service providing server 2 providing a service to the user through the Internet 4, a user identifier defined univocally for the user, and a server identifier specifying the service providing server 2 while associating them to each other, a user registration means 121 associating the transmitted user identifier and the user information with each other and registering them in the user database 173, and a server registration means 122 associating the transmitted server identifier with the user identifier and registering them in the user database 173. |
