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A Survey of Policy Specification Approaches

Policies are rules governing the choices in behaviour of a system. They are often used as a means of implementing flexible and adaptive systems for management of internet services, distributed systems, and security systems. There is also a need for a common specification of security policy for large-scale, multiorganisational systems where access control is implemented in a variety of heterogeneous components. In this paper we survey both security and management policy specification approaches. We also cover the issues relating to detecting and resolving conflicts which can arise in the policies and some ideas on how to refine high level goals and service level agreements into implementable policies. The paper briefly outlines some of the research issues that have to be solved for large-scale adoption of policy-based systems