Applying KAoS Services to Ensure Policy Compliance for Semantic Web Services Workflow Composition and Enactment

In this paper we describe our experience in applying KAoS services to ensure policy compliance for Semantic Web Services workflow composition and enactment. We are developing these capabilities within the context of two applications: Coalition Search and Rescue (CoSAR-TS) and Semantic Firewall (SFW). We describe how this work has uncovered requirements for increasing the expressivity of policy beyond what can be done with description logic (e.g., role-value-maps), and how we are extending our representation and reasoning mechanisms in a carefully controlled manner to that end. Since KAoS employs OWL for policy representation, it fits naturally with the use of OWL-S workflow descriptions generated by the AIAI I-X planning system in the CoSARTS application. The advanced reasoning mechanisms of KAoS are based on the JTP inference engine and enable the analysis of classes and instances of processes from a policy perspective. As the result of analysis, KAoS concludes whether a particular w...

• Type: Conference
• Year: 2004
• Where: SEMWEB
• Authors: Andrzej Uszok, Jeffrey M. Bradshaw, Renia Jeffers, Austin Tate, Jeff Dalton
• Keywords: Policy, SEMWEB 2004, Workflow, Workflow Composition