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RDFa 25.1 KB
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				<h1 id="firstHeading" class="firstHeading">RDFa</h1>
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			<h3 id="siteSub">From Semantic Web Standards</h3>
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<ul><li> Publication date: 2008-10-14   
</li><li> Created by:  <a href="http://www.w3.org/2001/sw/#rdfa" class="external text" title="http://www.w3.org/2001/sw/#rdfa" rel="nofollow">RDFa Working Group</a>
</li><li> List of documents at: <a href="http://www.w3.org/standards/techs/rdfa" class="external free" title="http://www.w3.org/standards/techs/rdfa" rel="nofollow">http://www.w3.org/standards/techs/rdfa</a> 
</li></ul>
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<a name="RDF_in_Attributes_.28RDFa.29" id="RDF_in_Attributes_.28RDFa.29"></a><h1> <span class="mw-headline"> RDF in Attributes (RDFa) </span></h1>
<a name="Overview" id="Overview"></a><h2> <span class="mw-headline"> Overview </span></h2>
<p>RDFa is a specification for attributes to express structured data in XHTML. The rendered, hypertext content of XHTML is reused by the RDFa markup, so that publishers don't need to repeat significant data in the document. Tools can extract that structured data and generate <a href="/2001/sw/wiki/RDF" title="RDF">RDF</a> triplets for further reuse. RDFa can be considered as another serialization format for <a href="/2001/sw/wiki/RDF" title="RDF">RDF</a>, alongside <a href="http://www.w3.org/TR/2004/REC-rdf-syntax-grammar-20040210/" class="external text" title="http://www.w3.org/TR/2004/REC-rdf-syntax-grammar-20040210/" rel="nofollow">RDF/XML</a> or <a href="http://www.w3.org/TeamSubmission/turtle/" class="external text" title="http://www.w3.org/TeamSubmission/turtle/" rel="nofollow">Turtle</a>. 
</p><p>The separate <a href="http://www.w3.org/2010/02/rdfa" class="external text" title="http://www.w3.org/2010/02/rdfa" rel="nofollow">RDFa Working Group</a> was formed in February 2010 to produce a new version of the RDFa documents (originally developed by the Semantic Web Deployment Working Group).
</p>
<a name="Points_for_consideration" id="Points_for_consideration"></a><h2> <span class="mw-headline"> Points for consideration </span></h2>
<ul><li> <a href="http://www.w3.org/2001/sw/wiki/RDFa/FragmentIdentifiers" class="external text" title="http://www.w3.org/2001/sw/wiki/RDFa/FragmentIdentifiers" rel="nofollow">RDFa, Fragment Identifiers and HTTP</a>
</li></ul>
<a name="Recommended_Reading" id="Recommended_Reading"></a><h2> <span class="mw-headline"> Recommended Reading </span></h2>
<p>The official <a href="http://www.w3.org/standards/techs/rdfa" class="external text" title="http://www.w3.org/standards/techs/rdfa" rel="nofollow">RDFa</a> documents, published in 2008, include a <a href="http://www.w3.org/TR/2008/NOTE-xhtml-rdfa-primer-20081014/" class="external text" title="http://www.w3.org/TR/2008/NOTE-xhtml-rdfa-primer-20081014/" rel="nofollow">RDFa Primer</a>. The community also maintains a separate <a href="http://rdfa.info" class="external text" title="http://rdfa.info" rel="nofollow">RDFa Wiki</a> for further information.
</p><p>A number of textbooks have been published on <a href="/2001/sw/wiki/RDF" title="RDF">RDF</a>, RDFS, and on Semantic Web in general. Please, refer to a <a href="/2001/sw/wiki/Books" title="Books">separate page</a> 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.
</p>
<a name="Tools_that_are_listed_as_relevant_to_RDFa" id="Tools_that_are_listed_as_relevant_to_RDFa"></a><h1> <span class="mw-headline"> Tools that are listed as relevant to RDFa </span></h1>
<p>(Note that you can browse tools per <a href="/2001/sw/wiki/Category:Tool" title="Category:Tool">tool categories</a> or <a href="/2001/sw/wiki/Category:Programming_Language" title="Category:Programming Language">programming languages</a>, too.)
</p>
<a name="Last_modified_and.2For_added" id="Last_modified_and.2For_added"></a><h2> <span class="mw-headline"> Last modified and/or added </span></h2>
<p>The description of the following tools have been added and/or modified most recently.
</p>
				<ul>
<li><a href="/2001/sw/wiki/RDFaDev" title="RDFaDev">RDFa Developer</a> (last modified: 10 November 2011)</li>
<li><a href="/2001/sw/wiki/RDF2RDFa" title="RDF2RDFa">RDF2RDFa Converter</a> (last modified: 4 November 2011)</li>
<li><a href="/2001/sw/wiki/MSemantic" title="MSemantic">MSemantic</a> (last modified: 4 November 2011)</li>
<li><a href="/2001/sw/wiki/GoodRelations_for_Joomla" title="GoodRelations for Joomla">GoodRelations for Joomla</a> (last modified: 4 November 2011)</li>
<li><a href="/2001/sw/wiki/GoodRelations_Snippet_Generator" title="GoodRelations Snippet Generator">GoodRelations Snippet Generator</a> (last modified: 4 November 2011)</li>
				</ul>
<p><br />
</p>
<a name="All_relevant_tools" id="All_relevant_tools"></a><h2> <span class="mw-headline"> All relevant tools </span></h2>
<p>This is a list of all tools listed on this wiki, and that are marked as relevant to RDFa. 
</p>
				<ul>
<li><a href="/2001/sw/wiki/AllegroGraph" title="AllegroGraph">AllegroGraph RDF Store</a>  (triple store, programming environment, reasoner, development environment, rdfs reasoner). Directly usable from Java, LISP, Python, Prolog, C, Ruby, Perl
</li>
<li><a href="/2001/sw/wiki/Anzo" title="Anzo">Anzo Suite</a>  (development environment, programming environment, visualizer, converter). Directly usable from Javascript, Java, .Net
</li>
<li><a href="/2001/sw/wiki/CheckRDFa" title="CheckRDFa">checkrdfa</a>  (validator). 
</li>
<li><a href="/2001/sw/wiki/GR-Notify" title="GR-Notify">GR-Notify</a>  (api). 
</li>
<li><a href="/2001/sw/wiki/GoodRelations_Snippet_Generator" title="GoodRelations Snippet Generator">GoodRelations Snippet Generator</a>  (converter, rdf generator). 
</li>
<li><a href="/2001/sw/wiki/GoodRelations_for_Joomla" title="GoodRelations for Joomla">GoodRelations for Joomla</a>  (shop extension, rdf generator). 
</li>
<li><a href="/2001/sw/wiki/Java-rdfa" title="Java-rdfa">java-rdfa</a>  (rdf generator, converter). Directly usable from Java
</li>
<li><a href="/2001/sw/wiki/Krextor" title="Krextor">Krextor</a>  (rdf generator). 
</li>
<li><a href="/2001/sw/wiki/MSemantic" title="MSemantic">MSemantic</a>  (shop extension, rdf generator). 
</li>
<li><a href="/2001/sw/wiki/PyRdfa" title="PyRdfa">pyRdfa, an RDFa distiller and parser</a>  (rdf generator, programming environment, converter). Directly usable from Python
</li>
<li><a href="/2001/sw/wiki/RDF_Distiller" title="RDF Distiller">RDF Distiller</a>  (converter, rdf generator). 
</li>
<li><a href="/2001/sw/wiki/RDF_Translator" title="RDF Translator">RDF Translator</a>  (converter, rdf generator, api, programming environment). Directly usable from Python
</li>
<li><a href="/2001/sw/wiki/RDF-RDFa-Parser" title="RDF-RDFa-Parser">RDF-RDFa-Parser</a>  (rdf generator, programming environment, converter). Directly usable from Perl
</li>
<li><a href="/2001/sw/wiki/RDF2RDFa" title="RDF2RDFa">RDF2RDFa Converter</a>  (converter, rdf generator). 
</li>
<li><a href="/2001/sw/wiki/RDFa_Parser" title="RDFa Parser">RDFa Parser</a>  (rdf generator, converter). Directly usable from Python
</li>
<li><a href="/2001/sw/wiki/RDFaDev" title="RDFaDev">RDFa Developer</a>  (visualizer, validator, rdf generator, special browser). Directly usable from Javascript
</li>
<li><a href="/2001/sw/wiki/ReDeFer" title="ReDeFer">ReDeFer</a>  (converter, rdf generator, visualizer). 
</li>
<li><a href="/2001/sw/wiki/RedStore" title="RedStore">RedStore</a>  (triple store, sparql endpoint). 
</li>
<li><a href="/2001/sw/wiki/Sig.ma" title="Sig.ma">Sig.ma</a>  (special browser, semantic web browser, search engine). Directly usable from Java, Javascript
</li>
<li><a href="/2001/sw/wiki/TopBraid" title="TopBraid">TopBraid Suite</a>  (development environment, programming environment, editor, reasoner, owl reasoner, rule reasoner, rdfs reasoner). Directly usable from Flex
</li>
<li><a href="/2001/sw/wiki/TotalValidator" title="TotalValidator">Total Validator</a>  (validator). 
</li>
<li><a href="/2001/sw/wiki/OpenLink_Virtuoso" title="OpenLink Virtuoso">OpenLink Virtuoso</a>  (triple store, reasoner, rdf generator, sparql endpoint). Directly usable from C, C++, Python, PHP, Java, Javascript, ActionScript, Tcl, Perl, Ruby, Obj-C
</li>
<li><a href="/2001/sw/wiki/W3C_Validator" title="W3C Validator">W3C (X)HTML Validator</a>  (validator). 
</li>
<li><a href="/2001/sw/wiki/WPEC" title="WPEC">GoodRelations for WP e-Commerce</a>  (shop extension, rdf generator). 
</li>
				</ul>

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<div property='wiki_1_property:Date' content='14 October 2008'></div>
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<div property='wiki_1_property:Modification_date' content='21 May 2010 12:30:49'></div>
<div property='wiki_1_property:SameAs' content='http://www.w3.org/2002/01/tr-automation/techs#rdfa'></div>
<div property='wiki_1_property:SeeAlso' content='http://www.w3.org/standards/techs/rdfa'></div>
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	<div class="smwfact"><span class="smwfactboxhead">Facts about <span class="swmfactboxheadbrowse"><a href="/2001/sw/wiki/Special:Browse/RDFa" title="Special:Browse/RDFa">RDFa</a></span></span><span class="smwrdflink"><span class="rdflink"><a href="/2001/sw/wiki/Special:ExportRDF/RDFa" title="Special:ExportRDF/RDFa">RDF feed</a></span></span><table class="smwfacttable">
<tr><td class="smwpropname"><a href="/2001/sw/wiki/Property:Creator" title="Property:Creator">Creator</a></td><td class="smwprops"><a href="http://www.w3.org/2001/sw/#rdfa" class="external free" title="http://www.w3.org/2001/sw/#rdfa" rel="nofollow">http://www.w3.org/2001/sw/#rdfa</a>&#160;&#160;<span class="smwsearch"><a href="/2001/sw/wiki/Special:SearchByProperty/Creator/http:-2F-2Fwww.w3.org-2F2001-2Fsw-2F-23rdfa" title="Special:SearchByProperty/Creator/http:-2F-2Fwww.w3.org-2F2001-2Fsw-2F-23rdfa">+</a></span></td></tr><tr><td class="smwpropname"><a href="/2001/sw/wiki/Property:Date" title="Property:Date">Date</a></td><td class="smwprops">14 October 2008&#160;&#160;<span class="smwsearch"><a href="/2001/sw/wiki/Special:SearchByProperty/Date/14-20October-202008" title="Special:SearchByProperty/Date/14-20October-202008">+</a></span></td></tr><tr><td class="smwpropname"><a href="/2001/sw/wiki/Property:Description" title="Property:Description">Description</a></td><td class="smwprops">RDFa is a specification for attributes to express structured data in XHTML. The rendered, hypertext content of XHTML is reused by the RDFa markup, so that publishers don't need to repeat significant data in the document&#160;&#160;<span class="smwsearch"><a href="/2001/sw/wiki/Special:SearchByProperty/Description/RDFa-20is-20a-20specification-20for-20attributes-20to-20express-20structured-20data-20in-20XHTML.-20The-20rendered,-20hypertext-20content-20of-20XHTML-20is-20reused-20by-20the-20RDFa-20markup,-20so-20that-20publishers-20don%27t-20need-20to-20repeat-20significant-20data-20in-20the-20document" title="Special:SearchByProperty/Description/RDFa-20is-20a-20specification-20for-20attributes-20to-20express-20structured-20data-20in-20XHTML.-20The-20rendered,-20hypertext-20content-20of-20XHTML-20is-20reused-20by-20the-20RDFa-20markup,-20so-20that-20publishers-20don&#39;t-20need-20to-20repeat-20significant-20data-20in-20the-20document">+</a></span></td></tr><tr><td class="smwpropname"><a href="/2001/sw/wiki/Property:SameAs" title="Property:SameAs">SameAs</a></td><td class="smwprops"><a href="http://www.w3.org/2002/01/tr-automation/techs#rdfa" class="external free" title="http://www.w3.org/2002/01/tr-automation/techs#rdfa" rel="nofollow">http://www.w3.org/2002/01/tr-automation/techs#rdfa</a>&#160;&#160;<span class="smwsearch"><a href="/2001/sw/wiki/Special:SearchByProperty/SameAs/http:-2F-2Fwww.w3.org-2F2002-2F01-2Ftr-2Dautomation-2Ftechs-23rdfa" title="Special:SearchByProperty/SameAs/http:-2F-2Fwww.w3.org-2F2002-2F01-2Ftr-2Dautomation-2Ftechs-23rdfa">+</a></span></td></tr><tr><td class="smwpropname"><a href="/2001/sw/wiki/Property:SeeAlso" title="Property:SeeAlso">SeeAlso</a></td><td class="smwprops"><a href="http://www.w3.org/standards/techs/rdfa" class="external free" title="http://www.w3.org/standards/techs/rdfa" rel="nofollow">http://www.w3.org/standards/techs/rdfa</a>&#160;&#160;<span class="smwsearch"><a href="/2001/sw/wiki/Special:SearchByProperty/SeeAlso/http:-2F-2Fwww.w3.org-2Fstandards-2Ftechs-2Frdfa" title="Special:SearchByProperty/SeeAlso/http:-2F-2Fwww.w3.org-2Fstandards-2Ftechs-2Frdfa">+</a></span></td></tr></table></div>

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