Ontology

Rei Ontology Specifications, Ver 2.0

Lalana Kagal

May 15, 2007

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ontology, policy rei

Rei is a policy specification language in OWL-Lite that allows users to develop declarative policies over domain specific ontologies in RDF, DAML+OIL and OWL. Rei is used to describe positive and negative permissions and obligations of entities in the policy domain. A distinguishing feature of Rei is that it includes specifications for speech acts, policy analysis and conflict resolution. The speech included are delegation, revocation, request and cancel and are used for remote policy management. The two kinds of specifications included for policy analysis are use-case management and what-if analysis. As Rei is geared towards distributed environments, it also includes conflict resolution specifications like modality preferences or priority assignments between policies or between individual rules of a policy.

2.0

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