Last Call Working Draft of RDF 1.1 Concepts, Semantics Published

Ivan Herman of the W3C reports, “The W3C RDF Working Group has published two Last Call Working Drafts: (1) A Last Call Working Draft of RDF 1.1 Concepts and Abstract Syntax. The Resource Description Framework (RDF) is a framework for representing information in the Web. Comments are welcome through 6 September. (2) A Last Call Working Draft of RDF 1.1 Semantics. This document describes a precise semantics for the Resource Description Framework 1.1 and RDF Schema. It defines a number of distinct entailment regimes and corresponding patterns of entailment. It is part of a suite of documents which comprise the full specification of RDF 1.1. Comments are welcome through 6 September.”

According to the first working draft, “RDF 1.1 Concepts and Abstract Syntax defines an abstract syntax (a data model) which serves to link all RDF-based languages and specifications. The abstract syntax has two key data structures: RDF graphs are sets of subject-predicate-object triples, where the elements may be IRIs, blank nodes, or datatyped literals. They are used to express descriptions of resources. RDF datasets are used to organize collections of RDF graphs, and comprise a default graph and zero or more named graphs. This document also introduces key concepts and terminology, and discusses datatyping and the handling of fragment identifiers in IRIs within RDF graphs.” The “Semantics” working draft states, “This is a revision of the 2004 Semantics specification for RDF [RDF-MT] and supersedes that document. This document was published by the RDF Working Group as a Last Call Working Draft. This document is intended to become a W3CRecommendation. If you wish to make comments regarding this document, please send them to”

Image: Courtesy W3C

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