IDENTIFIER MANAGEMENT SYSTEM, INFORMATION MANAGEMENT SERVER, INTERCONNECTION DESTINATION MANAGEMENT SERVER, IDENTIFIER MANAGEMENT METHOD, INFORMATION MANAGEMENT PROGRAM, INTERCONNECTION DESTINATION MANAGEMENT PROGRAM

摘要

PROBLEM TO BE SOLVED: To prevent a group identifier from overlapping in different service systems interconnected.SOLUTION: In an identifier management system, an information management server 10 compares a confirmation target group identifier with a first public group identifier unit 11, and determines whether or not the confirmation target group identifier overlaps in another service system. Besides, the information management server 10 notifies an interconnection destination information management server 20 of the confirmation target group identifier, and the interconnection destination information management server 20 determines whether or not the confirmation target group identifier overlaps in the service system which is managed by itself or other service systems which is not managed by itself by comparing the confirmation target group identifier with own group identifier unit 21 and a second public group identifier unit 22.