Request management method and access control system

PURPOSE: To accelerate a processing by sending a different request to a prescribed access mode to a second level access manager when the request is not provided with consistency with a possible access mode to shared resources. CONSTITUTION: A task originates the request to a first level access manager 30 and the manager checks the table and judges whether or not the request and the present state of a lock entity are consistent. When the consistency of the request is denied, a second request is originated to the second level access managers 35a-35c and the manager arranges the request to the entity to a queue there. Thus, the processing is accelerated. COPYRIGHT: (C)1991,JPO