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While developments in distributed object computing environments, such as the Common Object Request Broker Architecture (CORBA) by the Object Management Group (2000) and the Telecommunication Intelligent Network Architecture (TINA) by H. Mulder (2002), have enabled interoperability between domains in large open distributed systems, managing the resources within such systems has become an increasingly complex task. This challenge has been considered for several years within the distributed systems management research community and policy-based management has recently emerged as a promising solution. Large evolving enterprises present a significant challenge for policy-based management partly due to the requirement to support both mutual transparency and individual autonomy between domains according to C. Bidan and V. Issarny (1998), but also because the fluidity and complexity of interactions occurring within such environments requires an ability to cope with the existence of multiple, potentially inconsistent policies. This paper discusses the need for providing both dynamic (run-time) and static (compile-time) conflict detection and resolution for policies in such systems and builds on our earlier conflict detection work (Dunlop et al., 2001, 2002) to introduce the methods for conflict resolution in large open distributed systems.
Date of Conference: 16-19 Sept. 2003