A new RDF Working Group, chartered to update the 2004 Recommendations for W3C’s Resource Description Framework, recently held its first face-to-face meeting in Amsterdam. Focusing on priorities established at a June 2010 workshop, the new working group aims at updating and extending the 2004 specification without disrupting existing usage.
The working group is currently discussing an extension to RDF to provide support for “multiple graphs and graph stores”, sometimes known as “named graphs”. The group has yet to settle on terminology, noting that the term “graph” has been overloaded, referringly variously to a (mutable) container for triples, to an immutable snapshot thereof, or to a serialization of a snapshot. The goal is to clarify which of these types of “graph” should have identifiers while ensuring that the term is used in a way consistent with the SPARQL query language. The outcome of this effort will inform a revision of the popular, user-friendly Turtle syntax, possibly with support for “quads” (i.e., triples extended with additional contextual information).
Before the end of its charter in January 2013, the group will undertake “clean-up” actions, such as marking lesser-used and less-well-understood features of RDF as “archaic”. Progress of the working group can be tracked on their wiki and mailing list.
Working Group wiki: http://w3.org/2011/rdf-wg/wiki/Main_Page
Working Group charter: http://w3.org/2010/09/rdf-wg-charter.html
Working Group mailing list: http://lists.w3.org/Archives/Public/public-rdf-wg/
2004 RDF Recommendation: http://www.w3.org/standards/techs/rdf#w3c_all
2010 RDF Workshop: http://www.w3.org/2001/sw/wiki/RDF/NextStepWorkshop
2011 Face-to-Face: http://www.w3.org/blog/SW/2011/04/15/rdf_working_group_meets_face_to_face_in_