System, server, and program for access right management

Each domain is provided with an access right management device which creates a resource-sharing policy and performs processing for resource-sharing policy negotiation between a plurality of domain administrators. An access right management device that has created a resource-sharing policy identifies, for each policy unit included in the resource-sharing policy, an access right management device that is a negotiating partner to negotiate with about the policy unit in question. The access right management device generates negotiation information including an identification name of the identified negotiating-partner access right management device and the policy unit in question and sends the negotiation information to the negotiating-partner access right management device. Only when all policy units are agreed on by respective identified negotiating-partner access right management devices, the resource-sharing policy is set on shared resources.