Policy change processing program, policy change processing methods, policy change processing equipment

摘要

A policy change processing apparatus stores therein policy contents defined by an equation and/or an inequation. The policy change processing apparatus also stores therein, for each of a plurality of policies, related information indicating whether a policy has a relationship with any other policies possibly resulting in a conflict. From the related information, the policy change processing apparatus obtains other policies that possibly result in a conflict with the policy, reads a policy content of the obtained other policies, and calculates a changeable scope and/or an out-of-group changeable scope. The policy change processing apparatus then stores therein, for each of the policies, the changeable scope that indicates a scope where the policy content is changeable without causing a conflict with any other policies. The policy change processing apparatus then determines whether a policy content, accepted as a change to a predetermined policy, is within a changeable scope of such a predetermined policy.