A computer program, method, and system for access control, which are capable of keeping and guaranteeing consistency of access control settings. A collector collects access control information and resource information which are set for each unit of processing such as an application and a file system and are transmitted from a transmitter, and stores them in an access control information memory. A combiner combines the collected access control information to create and store combined access control information in a combined access control information memory. A consistency adjuster analyzes the policies defined in the combined access control information stored in the combined access control information memory to detect inconsistency, and if inconsistency is detected, resolves the inconsistency according to an inconsistency measure policy. Thus, consistent filtering master information for the entire system is created and stored in a filtering master information memory.