HTML5/RDFa Arguments. When I came back from holiday, I caught up with the recent discussions around RDFa and HTML5. It’s exhausting reading so many posts repetitively reiterating the positions of people who all have the best of intentions but fundamentally different priorities. And such a shame that so much energy is spent on fruitless discussion when it could be spent at the very least improving specifications, if not testing, implementing, experimenting or otherwise in some very minor way changing the world. The particular thread’s subject was the use of prefixes, which are used to provide a shorthand for URIs, which are used to name properties such as It’s unquestionable, really, that prefixes are a source of problems: But underlying the arguments about the costs of prefixes are arguments about whether these disadvantages are important enough to stop For example, say that I have a page that contains the triple: or, in a more realistic frame of mind:
Ian.hixie.ch. HTML Microdata. Abstract This specification defines the HTML microdata mechanism. This mechanism allows machine-readable data to be embedded in HTML documents in an easy-to-write manner, with an unambiguous parsing model. It is compatible with numerous other data formats including RDF and JSON. Status of This document This section describes the status of this document at the time of its publication.
Other documents may supersede this document. This document was edited in place on 23 June 2014 to fix a wrong "Previous Version" link. If you wish to make comments regarding this document in a manner that is tracked by the W3C, please submit them via using our public bug database. The bulk of the text of this specification is also available in the WHATWG HTML Living Standard, under a license that permits reuse of the specification text. Publication as a Working Group Note does not imply endorsement by the W3C Membership. This specification is an extension to the HTML5 language.
Table of Contents 1 Dependencies . HTML5. This specification defines the 5th major version, second minor revision of the core language of the World Wide Web: the Hypertext Markup Language (HTML). In this version, new features continue to be introduced to help Web application authors, new elements continue to be introduced based on research into prevailing authoring practices, and special attention continues to be given to defining clear conformance criteria for user agents in an effort to improve interoperability. This section describes the status of this document at the time of its publication.
Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at This document was published by the Web Platform Working Group as a W3C Recommendation for HTML 5.2 that would obsolete the HTML 5.1 Recommendation. This document was produced by a group operating under the W3C Patent Policy.