Shared Web Annotations as a Platform for Third-Party Value-Added, Information Providers: Architecture, Protocols, and Usage Examples

摘要: In this paper, we present an architecture, called "ComMentor", which provides a platform for third-party providers of lightweight super-structures to material provided by conventional content providers. It enables people share structured in-place annotations about arbitrary on-line documents. The system is part general "virtual document" architecture ("PCD BRIO") in which--with the help distributed meta information--documents are dynamically synthesized from sources depending on user context and meta-information has been attached them. managed independently documents themselves separate servers, both terms storage authority. A wide range useful scenarios can be readily realized platform. We give examples how more personalized presentation achieved leveraging database uniform generating particular perspective. These include discussion paper drafts, collaborative filtering, seals approval, tours, shared "hotlists" with section-based visibility control, usage indicators, co-presence, value-added trails. Our object model request interface prototype implementation defined technical detail appendix.