Ontology-Based policy specification and management

Authors:
Wolfgang Nejdl;Daniel Olmedilla;Marianne Winslett;Charles C. Zhang
Affiliations:
L3S Research Center and University of Hannover, Germany;L3S Research Center and University of Hannover, Germany;Dept. of Computer Science, University of Illinois at Urbana-Champaign;Dept. of Computer Science, University of Illinois at Urbana-Champaign
Venue:
ESWC'05 Proceedings of the Second European conference on The Semantic Web: research and Applications
Year:
2005

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Abstract

The World Wide Web makes it easy to share information and resources, but offers few ways to limit the manner in which these resources are shared. The specification and automated enforcement of security-related policies offer promise as a way of providing controlled sharing, but few tools are available to assist in policy specification and management, especially in an open system such as the Web, where resource providers and users are often strangers to one another and exact and correct specification of policies will be crucial. In this paper, we propose the use of ontologies to simplify the tasks of policy specification and administration, discuss how to represent policy inheritance and composition based on credential ontologies, formalize these representations and the according constraints in Frame-Logic, and present POLICYTAB, a prototype implementation of our proposed scheme as a Protégé plug-in to support policy specification.