A logic-based calculus of events
New Generation Computing
Conflict analysis for management policies
Proceedings of the fifth IFIP/IEEE international symposium on Integrated network management V : integrated management in a virtual world: integrated management in a virtual world
Conflicts in Policy-Based Distributed Systems Management
IEEE Transactions on Software Engineering
Conflict Resolution Using Logic Programming
IEEE Transactions on Knowledge and Data Engineering
The Ponder Policy Specification Language
POLICY '01 Proceedings of the International Workshop on Policies for Distributed Systems and Networks
Using Event Calculus to Formalise Policy Specification and Analysis
POLICY '03 Proceedings of the 4th IEEE International Workshop on Policies for Distributed Systems and Networks
Flexible Resolution of Authorisation Conflicts in Distributed Systems
DSOM '08 Proceedings of the 19th IFIP/IEEE international workshop on Distributed Systems: Operations and Management: Managing Large-Scale Service Deployment
Disclosure control in multi-domain publish/subscribe systems
Proceedings of the 5th ACM international conference on Distributed event-based system
Considering privacy and effectiveness of authorization policies for shared electronic health records
Proceedings of the 2nd ACM SIGHIT International Health Informatics Symposium
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Policy-based network management promises to deliver a high degree of automation for military network management. A policy-based network management system provides the capability to express networking requirements in the form of policies and have them automatically realized in the network, without requiring further manual updates. However, as with every technology, these benefits come at the expense of certain obvious risks. The biggest risk associated with policy-based management is that the policies themselves can interact in undesirable ways, by causing conflicting actions to be taken by the management system. Thus it is essential that policies be analyzed for conflicts, and that mechanisms be put in place for determining how to resolve these conflicts. A number of policy conflict resolution techniques have been described in the literature; however, they often concentrate on the abstract problem of formal policy analysis and have very little to do with practical policy conflict resolution in live management systems. This paper provides an overview of the state of the art in policy conflict detection and resolution, followed by a critical look at what is really needed to resolve practical policy conflicts in network management systems. The premise of this paper is that application-specific policy conflict detection and resolution can mostly be addressed by careful policy writing (or re-writing), rather than via cumbersome and unrealistically complex policy conflict resolution solutions.