Resource Description Framework (RDF)
Resource Description Framework (RDF) is a model for describing collections of formalized statements about a Web resource. You can also think of RDF as a metadata system for the Web. Learn about this standard and about its relationship with the Semantic Web, Web Ontology Language (OWL), and more.
For almost as long as the World Wide Web Consortium (W3C) has worked toward next-generation markup technology in the form of XML, it has also worked toward next-generation technology for formal description of Web resources. Resource Description Framework

