Device and method for managing shared data, and computer-readable storage medium for computer program

A shared data managing method that manages shared data the method comprising:

• managing, with a device, a first user account that includes a first identifier and first user information on a first user who is to receive a first service associated with the first identifier;
• obtaining, with the device, a second identifier of a second user account used for a second service and second user information associated with the second identifier from a service providing system;
• when the first user information and the second user information include identical information, paring, with the device, the first identifier associated with the first user information with the second identifier associated with the second user information;
• and
• sending, with the device, the shared data, the pair of the first identifier and the second identifier, and an access right set on the first user account, to the service providing system.

A non-transitory computer-readable storage medium storing thereon a computer program used in a computer that manages shared data, the computer program causing the computer to:

• manage a first user account that includes a first identifier and first user information on a first user who is to receive a first service associated with the first identifier;
• obtain, from a service providing system that provides a second service, a second identifier of a second user account used for the second service and second user information on a second user associated with the second identifier;
• pair the first identifier associated with the first user information with the second identifier associated with the second user information;
• and
• send, to the service providing system, the shared data, the pair, and an access right set on the first user account.