Service system and information registration method

A service system comprising:

• a server that provides a service to a contracted tenant as a cloud service;
• and
• a device that receives the service provided by the server,
• wherein the server can communicate with the device through a network,
• wherein a terminal device that is operated by a contract administrator sends identification information of the contract administrator and information related to a contract of the service, to the server, and
• wherein the server includes
• a user information storage unit that stores identification information of a user for each of a plurality of users including the contract administrator, and specifies a role as the contract administrator associated with the identification information of the contract administrator,
• a communication unit that receives the identification information of the contract administrator and the information related to the contract of the service, and
• an information registration unit that registers the identification information of the contract administrator, contract identification information generated based on the contract, and an operation privilege related to the contract based on the role associated with the identification information of the contract administrator specified in the user information storage unit, in association with each other, in a contract operation privilege information storage,
• wherein the service system comprises a use privilege management target information storage unit that associates the identification information of the contract administrator with identification information of a general user and the device that can be assigned to the service by the contract administrator.