hu AT cs.nccu.edu.tw

Harold.Boley AT nrc.gc.ca Abstract—We propose a semantics-enabled layered policy ar-chitecture (“policy layer cake”) for the exchange and manage-ment of multiple policies created by different policy languages on the Web. This architecture consists of four layers: Unifying Logic layer, Policy Interchange Format (PIF) layer, Privacy Protection/DRM layer, and Domain Specific Applications layer. A meta-Policy Interchange Format (meta-PIF) layer is also introduced, side by side with the corresponding PIF layer, allowing a facilitator to provide uniform services of interchange, reconciliation, and combination of multi-policies from various domains on the Web. This SemPIF 1 architecture extends W3C’s Semantic Web architecture to permit the reuse of earlier work. A use case scenario of a facilitator employing SemPIF for multiple DRM and privacy protection policies on digital library subscription services will be demonstrated. Keywords-semantic web; ontology and rule; computer policy; privacy protection; digital rights management; I