The ACCENT Policy Server
Stephan Reiff‐Marganiec, Kenneth J. Turner · Stirling Online Research Repository (University of Stirling) · 2005
The ACCENT project (Advanced Call Control Enhancing Networked Systems, www.cs.stir.ac.uk/accent) was con-cerned with developing a practical and comprehensive policy language for call control. The project studied a number of distinct tasks: the definition of the language, and also a three-layer architecture for deploying and enforcing policies defined in the language. The approach was subsequently extended for home care and telecare on the MATCH project (Mobilising Advanced Technologies for Care at Home, www.match-project.org.uk) and for sensor networks and wind farms on the PROSEN project (Proactive Control of Sensor Networks, www.cs.stir.ac. uk/~kjt/research/prosen). This document focuses on the policy server layer of the architecture. The layer is concerned with storing, deploying and enforcing policies. It represents the core functionality of the three-layer architecture. This report discusses the prototype implementation at a technical level. It is intended as supporting documentation for devel-opers continuing to enhance the policy server, as well as those wishing to gain an insight into the technical details of the policy server layer. Relative to the version of November 2003, this Technical Report has been updated as follows: • The procedure for securing the policy database has been described (section 3.1).