| 主权项 |
1. An authority transfer system, which includes a terminal, a server that provides a service via a network, and a client that uses the service, the authority transfer system comprising:
an authentication unit configured to determine, based on authentication information input by a user via an authentication screen displayed on the terminal, whether the user is an authorized user; an issuance unit configured to, in a case where the user determined by the authentication unit to be an authorized user has performed, via an authorization screen displayed on the terminal, an authorization operation to permit an authority of the user in the service to be transferred to the client provided in the terminal, issue authorization information indicating that the authority of the user has been transferred to the client; an authorization unit configured to authorize the client to use the service by the authority of the user based on the authorization information, which the terminal transmits to the client when the client makes a request to use the service; and a checking unit configured to check with the user whether to perform, on a tenant to which the user who has been determined by the authentication unit to be an authorized user belongs, a setting such that, when an additional user belonging to the tenant uses the service via the client provided in the terminal, the authorization information corresponding to the client is issued without the additional user performing the authorization operation, wherein, in response to the user performing the setting such that, when an additional user belonging to the tenant uses the service via the client provided in the terminal, the authorization information is issued without the additional user performing the authorization operation, the authorization unit authorizes the additional user to use the service without performing the authorization operation when the additional user uses the service via the client provided in the terminal. |
