RDFa 1.1 Core, RDFa Lite and XHTML+RDFa published as Candidate Recommendations

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The RDF Web Applications Working Group has published three Candidate Recommendation documents: RDFa Core 1.1, RDFa Lite 1.1 and XHTML+RDFa 1.1.

Together, these documents outline the vision for RDFa in a variety of XML and HTML-based Web markup languages. RDFa Core 1.1 specifies the core syntax and processing rules for RDFa 1.1 and how the language is intended to be used in XML documents. RDFa Lite 1.1 provides a simple subset of RDFa for novice web authors. XHTML+RDFa 1.1 specifies the usage of RDFa in the XHTML markup language.

A number of improvements have been made to RDFa 1.1 over the past year by also working closely with Google, Microsoft, Yahoo!, and the other search engine developers, as well as experts, implementers, or users of the technology at large. Public review and comments have resulted in a number of further refinements to the language that eases the learning curve for beginner Web authors.

The release of these Candidate Recommendation documents is a signal to developers that the Working Group believes that each specification is ready for implementation. Although there are already a number of implementations around, the RDF Web Applications Working Group thus kindly asks for developers across the Web to implement the specification and provide implementation feedback via the RDF Web Applications Working Group mailing list. Developers can also make use of the RDFa test harness which, though still being finalized, already contains over 250 tests, most of which can be used in XML, XHTML, or HTML5.

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