The Resource Description Framework (RDF) is a specification currently under development within the W3C Metadata activity. RDF is designed to provide an infrastructure to support metadata across many web-based activities. RDF is the result of a number of metadata communities bringing together their needs to provide a robust and flexible architecture for supporting metadata on the Internet and WWW. Example applications include sitemaps, content ratings, stream channel definitions, search engine data collection (web crawling), digital library collections, and distributed authoring.
RDF will allow different application communities to define the metadata property set that best serves the needs of each community. RDF will provide a uniform and interoperable means to exchange the metadata between programs and across the Web. Furthermore, RDF will provide a means for publishing both a human-readable and a machine-understandable definition of the property set itself.
RDF will use XML as the transfer syntax in order to leverage other tools and code bases being built around XML.
A first public draft of a work-in-progress was released on October 2, 1997. Further information on the RDF Working Groups is available to W3C Members.
Related W3C Tech Reports
Frequently asked questions about RDF, with answers.