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| Rec=yes
| Button=sw-rdf-blue
| Pubdate=2004-02-10
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= Resource Description Framework (RDF) =
== Overview ==
[[description::RDF is a standard model for data interchange on the Web.]] RDF has features that facilitate data merging even if the underlying schemas differ, and it specifically supports the evolution of schemas over time without requiring all the data consumers to be changed.
RDF extends the linking structure of the Web to use URIs to name the relationship between things as well as the two ends of the link (this is usually referred to as a “triple”). Using this simple model, it allows structured and semi-structured data to be mixed, exposed, and shared across different applications.
This linking structure forms a directed, labeled graph, where the edges represent the named link between two resources, represented by the graph nodes. This ''graph view'' is the easiest possible mental model for RDF and is often used in easy-to-understand visual explanations.
== Recommended Reading ==
The RDF Specification consists of a [http://www.w3.org/standards/techs/rdf suite of W3C Recommendations], published in 2004. This suite also includes an [http://www.w3.org/TR/2004/REC-rdf-primer-20040210/ RDF Primer]. See also Tim Berners-Lee’s writings on [http://www.w3.org/DesignIssues/ Web Design Issues], including [http://www.w3.org/DesignIssues/Metadata Metadata Architecture]. Other technologies, like [[OWL]] or [http://www.w3.org/2004/02/skos/wiki/Main_Page SKOS], build on RDF and provide language for defining structured, Web-based ontologies which enable richer integration and interoperability of data among descriptive communities.
A number of textbooks have been published on RDF and on Semantic Web in general. Please, refer to a [[Books|separate page]] listing some of those, as maintained by the community. That list also includes references to conference proceedings and article collections that might be of general interest.
== Discussions on a possible next version of RDF ==
There is, currently, a discussion on the [http://www.w3.org/2001/sw/interest/ Semantic Web Interest Group] on whether an update of RDF is necessary and, if yes, what form should that take. There is a [[RDF2Wishlist|separate page on this Wiki]] on that discussion.
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