The Axiomatics Policy Server provides a complete implementation of the XACML architecture and a powerful solution to handle binary externalized attribute based access control. The product is complete with Policy Authoring tools; open APIs and rich SDK to facilitate an easy integration and operations in the customer's target systems. APS comes with a XACML 3.0 Policy Decision Point which provides standard XACML 3.0 request / response API. The Axiomatics Policy Server also provides a unique authorization API called the Axiomatics Reverse Query, which provides an innovative solution to handle the non-binary (listing) authorization requests. The product solves complex use cases of authorization decisions on large data sets, and provides optional tools for auditing, reporting and policy testing.