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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">XHTML+RDFa</span></span>
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</style><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above" style="padding-bottom: 0.15em;">XHTML+RDFa</th></tr><tr><th scope="row" class="infobox-label" style="line-height: 1.2; padding-right: 0.65em;"><a href="Filename_extension" title="Filename extension">Filename extension</a></th><td class="infobox-data" style="line-height: 1.35;"><style data-mw-deduplicate="TemplateStyles:r886049734">
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.xhtml, .xht,<br> .xml, .html, .htm</div></td></tr><tr><th scope="row" class="infobox-label" style="line-height: 1.2; padding-right: 0.65em;"><a href="Media_type" title="Media type">Internet media type</a></th><td class="infobox-data" style="line-height: 1.35;"><div class="monospaced">
application/xhtml+xml</div></td></tr><tr><th scope="row" class="infobox-label" style="line-height: 1.2; padding-right: 0.65em;">Developed by</th><td class="infobox-data" style="line-height: 1.35;"><a href="World_Wide_Web_Consortium" title="World Wide Web Consortium">World Wide Web Consortium</a></td></tr><tr><th scope="row" class="infobox-label" style="line-height: 1.2; padding-right: 0.65em;">Initial release</th><td class="infobox-data" style="line-height: 1.35;">14 October 2008<span style="display: none;"> (<span class="bday dtstart published updated itvstart">2008-10-14</span>)</span></td></tr><tr><th scope="row" class="infobox-label" style="line-height: 1.2; padding-right: 0.65em;"><a href="Software_release_life_cycle" title="Software release life cycle">Latest release</a></th><td class="infobox-data" style="line-height: 1.35;"><div style="display: inline-block; line-height: 1.2em; padding: .1em 0;">1.1<br>3 August 2010<span style="display:none"> (<span class="bday dtstart published updated">2010-08-03</span>)</span> </div></td></tr><tr><th scope="row" class="infobox-label" style="line-height: 1.2; padding-right: 0.65em;">Type of format</th><td class="infobox-data" style="line-height: 1.35;">Host language</td></tr><tr><th scope="row" class="infobox-label" style="line-height: 1.2; padding-right: 0.65em;">Extended from</th><td class="infobox-data" style="line-height: 1.35;"><a href="XML" title="XML">XML</a>, <a href="HTML" title="HTML">HTML</a></td></tr><tr><th scope="row" class="infobox-label" style="line-height: 1.2; padding-right: 0.65em;"><a href="International_standard" title="International standard">Standard</a></th><td class="infobox-data" style="line-height: 1.35;"><a rel="nofollow" class="external text" href="https://www.w3.org/TR/2008/REC-rdfa-syntax-20081014/">1.0 (Recommendation)</a>, <br>
<a rel="nofollow" class="external text" href="https://www.w3.org/TR/2015/REC-xhtml-rdfa-20150317/">1.1 (Recommendation)</a></td></tr></tbody></table>
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</style><table class="sidebar nomobile nowraplinks"><tbody><tr><th class="sidebar-title"><a href="HTML" title="HTML">HTML</a></th></tr><tr><td class="sidebar-content hlist">
<ul><li><a href="Dynamic_HTML" title="Dynamic HTML">Dynamic HTML</a></li>
<li><a href="HTML5" title="HTML5">HTML5</a>
<ul><li><a href="Article_element" title="Article element">article</a></li>
<li><a href="HTML_audio" title="HTML audio">audio</a></li>
<li><a href="Canvas_element" title="Canvas element">canvas</a></li>
<li><a href="HTML_video" title="HTML video">video</a></li></ul></li>
<li><a href="XHTML" title="XHTML">XHTML</a>
<ul><li><a href="XHTML_Basic" title="XHTML Basic">Basic</a></li>
<li><a href="XHTML_Mobile_Profile" title="XHTML Mobile Profile">Mobile Profile</a></li></ul></li>
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<ul><li><a href="Meta_element" title="Meta element">meta</a></li>
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<li><a href="Blink_element" title="Blink element">blink</a></li>
<li><a href="Marquee_element" title="Marquee element">marquee</a></li></ul></li>
<li><a href="HTML_attribute" title="HTML attribute">HTML attribute</a>
<ul><li><a href="Alt_attribute" title="Alt attribute">alt attribute</a></li></ul></li>
<li><a href="Frame_(World_Wide_Web)" title="Frame (World Wide Web)">HTML frame</a></li>
<li><a href="HTML_editor" title="HTML editor">HTML editor</a></li>
<li><a href="Character_encodings_in_HTML" title="Character encodings in HTML">Character encodings</a>
<ul><li><a href="List_of_XML_and_HTML_character_entity_references" title="List of XML and HTML character entity references">named characters</a></li>
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<li><a href="World_Wide_Web_Consortium" title="World Wide Web Consortium">W3C</a>
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<li><a href="WHATWG" title="WHATWG">WHATWG</a></li>
<li><a href="Quirks_mode" title="Quirks mode">Quirks mode</a></li>
<li><a href="Web_storage" title="Web storage">Web storage</a></li>
<li><a href="Browser_engine" title="Browser engine">Rendering engine</a></li></ul></td>
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Comparisons</th></tr><tr><td class="sidebar-content hlist">
<ul><li><a href="Comparison_of_document_markup_languages" title="Comparison of document markup languages">Document markup languages</a></li>
<li><a href="Comparison_of_browser_engines" title="Comparison of browser engines">Comparison of browser engines</a></li></ul></td>
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<p><b>XHTML+RDFa (Extensible Hypertext Markup Language + Resource Description Framework in attributes)</b> is an extended version of the <a href="XHTML" title="XHTML">XHTML</a> <a href="Markup_language" title="Markup language">markup language</a> for supporting <a href="Resource_Description_Framework" title="Resource Description Framework">RDF</a> through a collection of attributes and processing rules in the form of <a href="Well-formed_document" title="Well-formed document">well-formed</a> <a href="XML" title="XML">XML</a> documents. XHTML+RDFa is one of the techniques used to develop <a href="Semantic_Web" title="Semantic Web">Semantic Web</a> content by embedding rich semantic markup.
Version 1.1 of the language is a superset of <a href="XHTML_1.1" class="mw-redirect" title="XHTML 1.1">XHTML 1.1</a>, integrating the attributes according to <a href="RDFa" title="RDFa">RDFa</a> Core 1.1. In other words, it is an <a href="RDFa" title="RDFa">RDFa</a> support through <a href="XHTML_Modularization" title="XHTML Modularization">XHTML Modularization</a>.
</p><p><a href="RDFa" title="RDFa">RDFa</a> in <a href="XHTML" title="XHTML">XHTML</a> version 1.0 became a <a href="World_Wide_Web_Consortium" title="World Wide Web Consortium">World Wide Web Consortium</a> (W3C) <a href="W3C_recommendation" class="mw-redirect" title="W3C recommendation">Recommendation</a> on 14 October 2008.<sup id="cite_ref-dateOfVersion1.0_1-0" class="reference"><a href="#cite_note-dateOfVersion1.0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-timelinehistory_2-0" class="reference"><a href="#cite_note-timelinehistory-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p><p>The current recommendation is <a href="RDFa" title="RDFa">RDFa</a>+<a href="XHTML" title="XHTML">XHTML</a> version 1.1, which became a W3C Recommendation on 7 June 2012<sup id="cite_ref-dateOfVersion1.1_3-0" class="reference"><a href="#cite_note-dateOfVersion1.1-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> and was updated with a ”Second Edition” on 22 August 2013<sup id="cite_ref-dateOfVersion1.1SecondEdition_4-0" class="reference"><a href="#cite_note-dateOfVersion1.1SecondEdition-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> and a ”Third Edition” on 17 March 2015.<sup id="cite_ref-dateOfVersion1.1ThirdEdition_5-0" class="reference"><a href="#cite_note-dateOfVersion1.1ThirdEdition-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>
</p><p>Version 1.1 is based on <a rel="nofollow" class="external text" href="http://www.w3.org/TR/2013/REC-xhtml-rdfa-20130822/#xhtml-rdfa-1.1-definition">XHTML™ 1.1 - Module-based XHTML - Second Edition</a>. Version 1.0 was based on the first edition.
</p>
<meta property="mw:PageProp/toc">
<div class="mw-heading mw-heading2"><h2 id="Overview">Overview</h2></div>
<p>Conventional Web documents contain large amounts of structured data that can be rendered in <a href="Web_browsers" class="mw-redirect" title="Web browsers">web browsers</a>. This approach works fine for publishing purposes, however, a large amount of data stored in <a href="Web_documents" class="mw-redirect" title="Web documents">Web documents</a> cannot be processed this way. XHTML+RDFa can provide <a href="Machine-readable_data" class="mw-redirect" title="Machine-readable data">machine-readable</a> <a href="Metadata" title="Metadata">metadata</a> within the <a href="Markup_language" title="Markup language">markup code</a> which makes additional user functionalities available. Most important of all, actions can be performed automatically that enables up-to-date publishing, structured search and sharing.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>
RDFa can serve as a bridge between the "human and data webs".<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>
The potential in web documents enriched with RDFa is increasing since major search engines begin to process them while indexing. Yahoo indexes <a href="RDFa" title="RDFa">RDFa</a> and microformats since 2008 and Google since 2009.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup>
The <a href="RDFa" title="RDFa">RDFa</a> attribute specifications make it possible to describe structured data in any <a href="Markup_language" title="Markup language">markup language</a>. The <a href="RDFa" title="RDFa">RDFa</a> markup in XHTML+RDFa reuses the <a href="Markup_language" title="Markup language">markup code</a>, thus eliminating the need for unnecessary duplications.
XHTML+RDFa is not widely distributed yet, probably due to the lack of support in authoring tools and <a href="Content_management_systems" class="mw-redirect" title="Content management systems">content management systems</a>.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> However, there is good tendency. <a href="Drupal" title="Drupal">Drupal</a> 7, for example, supports <a href="RDFa" title="RDFa">RDFa</a>.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup>
Since the “a” in RDFa stands for attributes, it is straightforward to use <a href="CSS_selector" class="mw-redirect" title="CSS selector">CSS selectors</a> to style the code.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Document_Type_Definition">Document Type Definition</h2></div>
<p>The combination of <a href="XHTML_1.1" class="mw-redirect" title="XHTML 1.1">XHTML 1.1</a> and <a href="RDFa" title="RDFa">RDFa</a> modules is claimed to be an example <a href="Markup_language" title="Markup language">markup language</a>. The Document Type Definition (DTD) is published at the <a href="W3C" class="mw-redirect" title="W3C">W3C</a> website.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup>
</p><p>According to the <a href="Document_type_definition" title="Document type definition">document type declaration</a>, the identifiers of an XHTML+RDFa document should look like the following:
</p>
<div class="mw-highlight mw-highlight-lang-xml mw-content-ltr" dir="ltr"><pre><span class="cp"><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.1//EN"</span>
<span class="cp"> "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-2.dtd"></span>
</pre></div>
<p>An example XHTML+RDFa document:
</p>
<div class="mw-highlight mw-highlight-lang-xml mw-content-ltr" dir="ltr"><pre><span class="cp"><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.1//EN"</span>
<span class="cp"> "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-2.dtd"></span>
<span class="nt"><html</span><span class="w"> </span><span class="na">version=</span><span class="s">"XHTML+RDFa 1.1"</span><span class="w"> </span><span class="na">xmlns=</span><span class="s">"http://www.w3.org/1999/xhtml"</span><span class="w"> </span><span class="na">xml:lang=</span><span class="s">"en"</span><span class="w"> </span><span class="na">lang=</span><span class="s">"en"</span><span class="w"> </span><span class="nt">></span>
<span class="nt"><head></span>
<span class="nt"><title></span>XHTML+RDFa<span class="w"> </span>document<span class="w"> </span>example<span class="nt"></title></span>
<span class="nt"></head></span>
<span class="nt"><body></span>
<span class="w"> </span>...
<span class="nt"></body></span>
<span class="nt"></html></span>
</pre></div>
<div class="mw-heading mw-heading2"><h2 id="Authoring">Authoring</h2></div>
<p>The <a href="RDFa" title="RDFa">RDFa</a> <a href="Metadata" title="Metadata">metadata</a> is embedded as an <a href="XHTML" title="XHTML">XHTML</a> attribute of the document element, generally the <a href="XHTML" title="XHTML">XHTML</a> tag. The annotation syntax provided by RDFa can be used to express <a href="Resource_Description_Framework" title="Resource Description Framework">RDF</a> statements in <a href="XHTML" title="XHTML">XHTML</a> documents.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Validation">Validation</h2></div>
<p>XHTML+RDFa documents can be validated individually online at the <a href="W3C_Markup_Validation_Service" title="W3C Markup Validation Service">W3C Markup Validation Service</a> or together with <a href="CSS" title="CSS">CSS</a> and <a href="RSS" title="RSS">RSS</a> at W3C Unicorn. The validity of XHTML+RDFa documents can be indicated by the XHTML+RDFa conformance icons of <a href="W3C" class="mw-redirect" title="W3C">W3C</a> .
</p>
<div class="mw-heading mw-heading2"><h2 id="Examples">Examples</h2></div>
<p>XHTML syntax, additional namespaces and semantic markup.
</p>
<div class="mw-highlight mw-highlight-lang-xml mw-content-ltr" dir="ltr"><pre><span class="cp"><?xml version="1.0" encoding="UTF-8"?></span>
<span class="cp"><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.1//EN"</span>
<span class="cp"> "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-2.dtd"></span>
<span class="nt"><html</span><span class="w"> </span><span class="na">version=</span><span class="s">"XHTML+RDFa 1.1"</span><span class="w"> </span><span class="na">xmlns=</span><span class="s">"http://www.w3.org/1999/xhtml"</span>
<span class="w"> </span><span class="na">xmlns:contact=</span><span class="s">"http://www.w3.org/2000/10/swap/pim/contact#"</span>
<span class="w"> </span><span class="na">xmlns:foaf=</span><span class="s">"http://xmlns.com/foaf/0.1/"</span>
<span class="w"> </span><span class="na">xmlns:rdfs=</span><span class="s">"http://www.w3.org/2000/01/rdf-schema#"</span>
<span class="w"> </span><span class="na">xmlns:xsd=</span><span class="s">"http://www.w3.org/2001/XMLSchema#"</span>
<span class="w"> </span><span class="na">xml:lang=</span><span class="s">"en"</span>
<span class="w"> </span><span class="na">lang=</span><span class="s">"en"</span><span class="nt">></span>
<span class="nt"><head></span>
<span class="w"> </span><span class="nt"><title></span>XHTML+RDFa<span class="w"> </span>example<span class="nt"></title></span>
<span class="w"> </span><span class="nt"><meta</span><span class="w"> </span><span class="na">http-equiv=</span><span class="s">"Content-Type"</span><span class="w"> </span><span class="na">content=</span><span class="s">"application/xhtml+xml; charset=utf-8"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><meta</span><span class="w"> </span><span class="na">http-equiv=</span><span class="s">"Content-Style-Type"</span><span class="w"> </span><span class="na">content=</span><span class="s">"text/css"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><meta</span><span class="w"> </span><span class="na">name=</span><span class="s">"content-language"</span><span class="w"> </span><span class="na">content=</span><span class="s">"en"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><meta</span><span class="w"> </span><span class="na">name=</span><span class="s">"robots"</span><span class="w"> </span><span class="na">content=</span><span class="s">"index, follow"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><link</span><span class="w"> </span><span class="na">rel=</span><span class="s">"schema.DC"</span><span class="w"> </span><span class="na">href=</span><span class="s">"http://purl.org/dc/elements/1.1/"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><link</span><span class="w"> </span><span class="na">rel=</span><span class="s">"schema.DCTERMS"</span><span class="w"> </span><span class="na">href=</span><span class="s">"http://purl.org/dc/terms/"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><link</span><span class="w"> </span><span class="na">rel=</span><span class="s">"alternate"</span><span class="w"> </span><span class="na">type=</span><span class="s">"application/rss+xml"</span><span class="w"> </span><span class="na">title=</span><span class="s">"Feed channel of XHTML+RDFa example page"</span><span class="w"> </span><span class="na">href=</span><span class="s">"http://www.example.com/rss.xml"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><meta</span><span class="w"> </span><span class="na">name=</span><span class="s">"DC.title"</span><span class="w"> </span><span class="na">content=</span><span class="s">"XHTML+RDFa example"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><meta</span><span class="w"> </span><span class="na">name=</span><span class="s">"DC.subject"</span><span class="w"> </span><span class="na">content=</span><span class="s">"XHTML+RDFa, semantic web"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><meta</span><span class="w"> </span><span class="na">name=</span><span class="s">"DC.description"</span><span class="w"> </span><span class="na">content=</span><span class="s">"Example for Extensible Hypertext Markup Language + Resource Description Framework – in – attributes."</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><meta</span><span class="w"> </span><span class="na">name=</span><span class="s">"DC.format"</span><span class="w"> </span><span class="na">content=</span><span class="s">"application/xhtml+xml"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><meta</span><span class="w"> </span><span class="na">name=</span><span class="s">"DC.language"</span><span class="w"> </span><span class="na">content=</span><span class="s">"en"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><link</span><span class="w"> </span><span class="na">rel=</span><span class="s">"shortcut icon"</span><span class="w"> </span><span class="na">href=</span><span class="s">"favicon.ico"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><link</span><span class="w"> </span><span class="na">rel=</span><span class="s">"stylesheet"</span><span class="w"> </span><span class="na">type=</span><span class="s">"text/css"</span><span class="w"> </span><span class="na">href=</span><span class="s">"main.css"</span><span class="w"> </span><span class="na">title=</span><span class="s">"main styles"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><link</span><span class="w"> </span><span class="na">rel=</span><span class="s">"foaf:primaryTopic"</span><span class="w"> </span><span class="na">type=</span><span class="s">"application/rdf+xml"</span><span class="w"> </span><span class="na">title=</span><span class="s">"FOAF"</span><span class="w"> </span><span class="na">href=</span><span class="s">"http://www.example.com/metadata/foaf.rdf"</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><script</span><span class="w"> </span><span class="na">type=</span><span class="s">"text/javascript"</span><span class="w"> </span><span class="na">src=</span><span class="s">"js/click.js"</span><span class="nt">></script></span>
<span class="nt"></head></span>
<span class="nt"><body></span>
<span class="nt"><div</span><span class="w"> </span><span class="na">class=</span><span class="s">"content"</span><span class="nt">></span>
<span class="w"> </span><span class="nt"><p></span>
<span class="w"> </span><span class="nt"><span</span><span class="w"> </span><span class="na">property=</span><span class="s">"foaf:name"</span><span class="nt">></span>Jerry<span class="w"> </span>Smith<span class="nt"></span><br</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><i></span>Senior<span class="w"> </span>developer,<span class="w"> </span>QA<span class="nt"></i><br</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><a</span><span class="w"> </span><span class="na">title=</span><span class="s">"More about me"</span><span class="w"> </span><span class="na">rel=</span><span class="s">"rdfs:seeAlso"</span><span class="w"> </span><span class="na">href=</span><span class="s">"about.htm"</span><span class="nt">></span>More...<span class="nt"></a></span>
<span class="w"> </span><span class="nt"></p></span>
<span class="w"> </span><span class="nt"><p</span><span class="w"> </span><span class="na">rel=</span><span class="s">"contact:address"</span><span class="nt">></span>
<span class="w"> </span>93<span class="w"> </span>Rose<span class="w"> </span>Ave<span class="w"> </span><span class="nt"><br</span><span class="w"> </span><span class="nt">/></span>
<span class="w"> </span><span class="nt"><a</span><span class="w"> </span><span class="na">property=</span><span class="s">"contact:city"</span><span class="w"> </span><span class="na">rel=</span><span class="s">"rdfs:seeAlso"</span><span class="w"> </span><span class="na">title=</span><span class="s">"Adelaide on Wikipedia"</span><span class="w"> </span><span class="na">resource=</span><span class="s">"http://dbpedia.org/resource/Adelaide"</span>
<span class="w"> </span><span class="na">href=</span><span class="s">"http://en.wikipedia.org/wiki/Adelaide"</span><span class="nt">></span>Adelaide<span class="nt"></a></span>
<span class="w"> </span><span class="nt"></p></span>
<span class="w"> </span><span class="nt"><p></span>
<span class="w"> </span><span class="nt"><span</span><span class="w"> </span><span class="na">rel=</span><span class="s">"foaf:phone"</span><span class="w"> </span><span class="na">resource=</span><span class="s">"tel:+6112345678"</span><span class="nt">></span>+61<span class="w"> </span>12/345-678<span class="nt"></span></span>
<span class="w"> </span><span class="nt"></p></span>
<span class="nt"></div></span>
<span class="nt"></body></span>
<span class="nt"></html></span>
</pre></div>
<div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2></div>
<ul><li><a href="HTML" title="HTML">HTML</a></li>
<li><a href="List_of_XML_and_HTML_character_entity_references" title="List of XML and HTML character entity references">List of XML and HTML character entity references</a></li>
<li><a href="Microdata_(HTML)" title="Microdata (HTML)">Microdata (HTML)</a></li></ul>
<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
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</ol></div></div>
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</style></div><div role="navigation" class="navbox" aria-labelledby="World_Wide_Web_Consortium_(W3C)102" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="World_Wide_Web_Consortium_(W3C)102" style="font-size:114%;margin:0 4em"><a href="World_Wide_Web_Consortium" title="World Wide Web Consortium">World Wide Web Consortium</a> (W3C)</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Products,<br>standards</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="World_Wide_Web_Consortium#W3C_recommendation_(REC)" title="World Wide Web Consortium">Recommendations</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="ActivityPub" title="ActivityPub">ActivityPub</a></li>
<li><a href="Activity_Streams_(format)" title="Activity Streams (format)">Activity Streams</a></li>
<li><a href="WAI-ARIA" title="WAI-ARIA">ARIA</a></li>
<li><a href="Canonical_XML" title="Canonical XML">Canonical XML</a></li>
<li><a href="Compound_Document_Format" title="Compound Document Format">CDF</a></li>
<li><a href="CSS" title="CSS">CSS</a>
<ul><li><a href="CSS_animations" title="CSS animations">Animations</a></li>
<li><a href="Flexbox" title="Flexbox">Flexbox</a></li>
<li><a href="CSS_grid_layout" title="CSS grid layout">Grid</a></li></ul></li>
<li><a href="Document_Object_Model" title="Document Object Model">DOM</a></li>
<li><a href="Efficient_XML_Interchange" title="Efficient XML Interchange">EXI</a></li>
<li><a href="Emotion_Markup_Language" title="Emotion Markup Language">EmotionML</a></li>
<li><a href="W3C_Geolocation_API" title="W3C Geolocation API">Geolocation API</a></li>
<li><a href="HTML" title="HTML">HTML</a>
<ul><li><a href="HTML5" title="HTML5">HTML5</a></li></ul></li>
<li><a href="Indexed_Database_API" title="Indexed Database API">IndexedDB</a></li>
<li><a href="Internationalization_Tag_Set" title="Internationalization Tag Set">ITS</a></li>
<li><a href="JSON-LD" title="JSON-LD">JSON-LD</a></li>
<li><a href="Linked_Data_Notifications" title="Linked Data Notifications">Linked Data Notifications</a></li>
<li><a href="MathML" title="MathML">MathML</a></li>
<li><a href="Micropub_(protocol)" title="Micropub (protocol)">Micropub</a></li>
<li><a href="Web_Ontology_Language" title="Web Ontology Language">OWL</a></li>
<li><a href="Pronunciation_Lexicon_Specification" title="Pronunciation Lexicon Specification">PLS</a></li>
<li><a href="Resource_Description_Framework" title="Resource Description Framework">RDF</a>
<ul><li><a href="RDF_Schema" title="RDF Schema">Schema</a></li>
<li><a href="RDFa" title="RDFa">RDFa</a></li></ul></li>
<li><a href="Semantic_Interpretation_for_Speech_Recognition" title="Semantic Interpretation for Speech Recognition">SISR</a></li>
<li><a href="Simple_Knowledge_Organization_System" title="Simple Knowledge Organization System">SKOS</a></li>
<li><a href="Synchronized_Multimedia_Integration_Language" title="Synchronized Multimedia Integration Language">SMIL</a></li>
<li><a href="SOAP" title="SOAP">SOAP</a></li>
<li><a href="Speech_Recognition_Grammar_Specification" title="Speech Recognition Grammar Specification">SRGS</a></li>
<li><a href="Subresource_Integrity" title="Subresource Integrity">SRI</a></li>
<li><a href="Speech_Synthesis_Markup_Language" title="Speech Synthesis Markup Language">SSML</a></li>
<li><a href="SVG" title="SVG">SVG</a>
<ul><li><a href="SVG_filter_effects" title="SVG filter effects">Filter Effects</a></li></ul></li>
<li><a href="SCXML" title="SCXML">SCXML</a></li>
<li><a href="SHACL" title="SHACL">SHACL</a></li>
<li><a href="SPARQL" title="SPARQL">SPARQL</a></li>
<li><a href="Timed_text" title="Timed text">Timed text</a></li>
<li><a href="VoiceXML" title="VoiceXML">VoiceXML</a></li>
<li><a href="WebAssembly" title="WebAssembly">WebAssembly</a></li>
<li><a href="Web_of_Things" title="Web of Things">WoT</a>
<ul><li><a href="Thing_Description" title="Thing Description">TD</a></li></ul></li>
<li><a href="Web_storage" title="Web storage">Web storage</a></li>
<li><a href="Web_Services_Description_Language" title="Web Services Description Language">WSDL</a></li>
<li><a href="Webmention" title="Webmention">Webmention</a></li>
<li><a href="WebSub" title="WebSub">WebSub</a></li>
<li><a href="WebVTT" title="WebVTT">WebVTT</a></li>
<li><a href="Web_Open_Font_Format" title="Web Open Font Format">WOFF</a></li>
<li><a href="XHTML" title="XHTML">XHTML</a>
<ul></ul></li>
<li><a href="XML" title="XML">XML</a>
<ul><li><a href="XML_Base" title="XML Base">Base</a></li>
<li><a href="XML_Encryption" title="XML Encryption">Encryption</a></li>
<li><a href="XML_Events" title="XML Events">Events</a></li>
<li><a href="XML_Information_Set" title="XML Information Set">Information Set</a></li>
<li><a href="XML_namespace" title="XML namespace">Namespace</a></li>
<li><a href="XML_Schema_(W3C)" title="XML Schema (W3C)">Schema</a></li>
<li><a href="XML_Signature" title="XML Signature">Signature</a></li>
<li><a href="XForms" title="XForms">XForms</a></li>
<li><a href="XInclude" title="XInclude">XInclude</a></li>
<li><a href="XLink" title="XLink">XLink</a></li>
<li><a href="XML-binary_Optimized_Packaging" title="XML-binary Optimized Packaging">XOP</a></li>
<li><a href="XPath" title="XPath">XPath</a>
<ul><li><a href="XPath_2.0" title="XPath 2.0">2.0</a></li>
<li><a href="XPath_3" title="XPath 3">3.x</a></li></ul></li>
<li><a href="XPointer" title="XPointer">XPointer</a></li>
<li><a href="XProc" title="XProc">XProc</a></li>
<li><a href="XQuery" title="XQuery">XQuery</a></li>
<li><a href="XSL" title="XSL">XSL</a></li>
<li><a href="XSL_Formatting_Objects" title="XSL Formatting Objects">XSL-FO</a></li>
<li><a href="XSLT" title="XSLT">XSLT</a>
<ul><li><a href="XSLT_elements" title="XSLT elements">elements</a></li></ul></li></ul></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Notes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="IndieAuth" title="IndieAuth">IndieAuth</a></li>
<li><a href="XAdES" title="XAdES">XAdES</a></li>
<li><a href="XBL" title="XBL">XBL</a></li>
<li><a href="XHTML%2BSMIL" title="XHTML+SMIL">XHTML+SMIL</a></li>
<li><a href="Extensible_User_Interface_Protocol" title="Extensible User Interface Protocol">XUP</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="World_Wide_Web_Consortium#Working_draft_(WD)" title="World Wide Web Consortium">Working drafts</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Call_Control_eXtensible_Markup_Language" title="Call Control eXtensible Markup Language">CCXML</a></li>
<li><a href="CURIE" title="CURIE">CURIE</a></li>
<li><a href="Encrypted_Media_Extensions" title="Encrypted Media Extensions">EME</a></li>
<li><a href="InkML" title="InkML">InkML</a></li>
<li><a href="Media_Source_Extensions" title="Media Source Extensions">MSE</a></li>
<li><a href="Rule_Interchange_Format" title="Rule Interchange Format">RIF</a></li>
<li><a href="SMIL_Timesheets" title="SMIL Timesheets">SMIL Timesheets</a></li>
<li><a href="SXBL" title="SXBL">sXBL</a></li>
<li><a href="WebGPU" title="WebGPU">WebGPU</a></li>
<li><a href="WebXR" title="WebXR">WebXR</a></li>
<li><a href="Extensible_Forms_Description_Language" title="Extensible Forms Description Language">XFDL</a></li>
<li><a href="XFrames" title="XFrames">XFrames</a></li>
<li><a href="XMLHttpRequest" title="XMLHttpRequest">XMLHttpRequest</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Guidelines</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines">Web Content Accessibility Guidelines</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Initiative</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="W3C_Markup_Validation_Service" title="W3C Markup Validation Service">Markup Validation Service</a></li>
<li><a href="Web_Accessibility_Initiative" title="Web Accessibility Initiative">Web Accessibility Initiative</a></li>
<li><a href="Web_Components" title="Web Components">Web Components</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Deprecated</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="C-HTML" class="mw-redirect" title="C-HTML">C-HTML</a></li>
<li><a href="Handheld_Device_Markup_Language" title="Handheld Device Markup Language">HDML</a></li>
<li><a href="JavaScript_Style_Sheets" title="JavaScript Style Sheets">JSSS</a></li>
<li><a href="Precision_Graphics_Markup_Language" title="Precision Graphics Markup Language">PGML</a></li>
<li><a href="Vector_Markup_Language" title="Vector Markup Language">VML</a></li>
<li><a href="WebPlatform.org" title="WebPlatform.org">WebPlatform</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Obsoleted</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="P3P" title="P3P">P3P</a></li>
<li><a href="XHTML%2BMathML%2BSVG" title="XHTML+MathML+SVG">XHTML+MathML+SVG</a></li></ul>
</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Groups,<br>organizations</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="WHATWG" title="WHATWG">WHATWG</a></li>
<li>Defunct: <a href="World_Wide_Web_Foundation" title="World Wide Web Foundation">World Wide Web Foundation</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Elected</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li>AB</li>
<li>Board</li>
<li><a href="Technical_Architecture_Group" title="Technical Architecture Group">TAG</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Working</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="CSS_Working_Group" title="CSS Working Group">CSS</a></li>
<li><a href="SVG_Working_Group" title="SVG Working Group">SVG</a></li>
<li><a href="WebAssembly" title="WebAssembly">WebAssembly</a></li>
<li><a href="Web_Authentication_Working_Group" title="Web Authentication Working Group">WebAuthn</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Community, business</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Improving_Web_Advertising_Business_Group" title="Improving Web Advertising Business Group">Web Advertising BG</a></li>
<li><a href="WebAssembly" title="WebAssembly">WebAssembly</a> CG</li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Closed</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="W3C_Device_Description_Working_Group" title="W3C Device Description Working Group">Device Description</a> (DDWG)</li>
<li><a href="HTML_Working_Group" title="HTML Working Group">HTML</a></li>
<li><a href="W3C_MMI" title="W3C MMI">Multimodal Interaction Activity</a> (MMI)</li></ul>
</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Software</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="CERN_httpd" title="CERN httpd">CERN httpd</a></li>
<li><a href="Libwww" title="Libwww">Libwww</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Web_browser" title="Web browser">Browsers</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Line_Mode_Browser" title="Line Mode Browser">Line Mode</a> (1990–)</li>
<li><a href="Arena_(web_browser)" title="Arena (web browser)">Arena</a> (1993–98)</li>
<li><a href="Agora_(web_browser)" title="Agora (web browser)">Agora</a> (1994–97)</li>
<li><a href="Argo_(web_browser)" title="Argo (web browser)">Argo</a> (1994–97)</li>
<li><a href="Amaya_(web_editor)" title="Amaya (web editor)">Amaya</a> (browser/editor, 1996–2012)</li></ul>
</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Conferences</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="The_Web_Conference" title="The Web Conference">International World Wide Web Conference</a> (IW3C)
<ul><li><a href="International_World_Wide_Web_Conference_Committee" title="International World Wide Web Conference Committee">Steering Committee</a> (IW3C2)</li>
<li><a href="First_International_Conference_on_the_World-Wide_Web" title="First International Conference on the World-Wide Web">First conference</a> ("WWW1", 1994)</li></ul></li></ul>
</div></td></tr></tbody></table></div>
<div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="Semantic_Web71" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Semantic_Web71" style="font-size:114%;margin:0 4em"><a href="Semantic_Web" title="Semantic Web">Semantic Web</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Background</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Database" title="Database">Databases</a></li>
<li><a href="Hypertext" title="Hypertext">Hypertext</a></li>
<li><a href="Internet" title="Internet">Internet</a></li>
<li><a href="Ontology_(information_science)" title="Ontology (information science)">Ontologies</a></li>
<li><a href="Semantics_(computer_science)" title="Semantics (computer science)">Semantics</a></li>
<li><a href="Semantic_network" title="Semantic network">Semantic networks</a></li>
<li><a href="World_Wide_Web" title="World Wide Web">World Wide Web</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Sub-topics</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Dataspaces" class="mw-redirect" title="Dataspaces">Dataspaces</a></li>
<li><a href="Hyperdata" title="Hyperdata">Hyperdata</a></li>
<li><a href="Linked_data" title="Linked data">Linked data</a></li>
<li><a href="Rule-based_system" title="Rule-based system">Rule-based systems</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Applications</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Semantic_analytics" title="Semantic analytics">Semantic analytics</a></li>
<li><a href="Semantic_computing" title="Semantic computing">Semantic computing</a></li>
<li><a href="Semantic_mapper" title="Semantic mapper">Semantic mapper</a></li>
<li><a href="Semantic_matching" title="Semantic matching">Semantic matching</a></li>
<li><a href="Semantic_publishing" title="Semantic publishing">Semantic publishing</a></li>
<li><a href="Semantic_reasoner" title="Semantic reasoner">Semantic reasoner</a></li>
<li><a href="Semantic_search" title="Semantic search">Semantic search</a></li>
<li><a href="Semantic_service-oriented_architecture" title="Semantic service-oriented architecture">Semantic service-oriented architecture</a></li>
<li><a href="Semantic_wiki" title="Semantic wiki">Semantic wiki</a></li>
<li><a href="Solid_(web_decentralization_project)" title="Solid (web decentralization project)">Solid</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related topics</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Collective_intelligence" title="Collective intelligence">Collective intelligence</a></li>
<li><a href="Description_logic" title="Description logic">Description logic</a></li>
<li><a href="Folksonomy" title="Folksonomy">Folksonomy</a></li>
<li><a href="Geotagging" title="Geotagging">Geotagging</a></li>
<li><a href="Information_architecture" title="Information architecture">Information architecture</a></li>
<li><a href="IXBRL" class="mw-redirect" title="IXBRL">iXBRL</a></li>
<li><a href="Knowledge_extraction" title="Knowledge extraction">Knowledge extraction</a></li>
<li><a href="Knowledge_management" title="Knowledge management">Knowledge management</a></li>
<li><a href="Knowledge_representation_and_reasoning" title="Knowledge representation and reasoning">Knowledge representation and reasoning</a></li>
<li><a href="Library_2.0" title="Library 2.0">Library 2.0</a></li>
<li><a href="Digital_library" title="Digital library">Digital library</a></li>
<li><a href="Digital_humanities" title="Digital humanities">Digital humanities</a></li>
<li><a href="Metadata" title="Metadata">Metadata</a></li>
<li><a href="Reference_(computer_science)" title="Reference (computer science)">References</a></li>
<li><a href="Topic_map" title="Topic map">Topic map</a></li>
<li><a href="Web_2.0" title="Web 2.0">Web 2.0</a></li>
<li><a href="Web_engineering" title="Web engineering">Web engineering</a></li>
<li><a href="Web_Science_Trust" title="Web Science Trust">Web Science Trust</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Standards</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Syntax and supporting technologies</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="HTTP" title="HTTP">HTTP</a></li>
<li><a href="Internationalized_Resource_Identifier" title="Internationalized Resource Identifier">IRI</a>
<ul><li><small><a href="Uniform_Resource_Identifier" title="Uniform Resource Identifier">URI</a></small></li></ul></li>
<li><a href="Resource_Description_Framework" title="Resource Description Framework">RDF</a>
<ul><li><small><a href="Semantic_triple" title="Semantic triple">triples</a></small></li>
<li><small><a href="RDF/XML" title="RDF/XML">RDF/XML</a></small></li>
<li><small><a href="JSON-LD" title="JSON-LD">JSON-LD</a></small></li>
<li><small><a href="Turtle_(syntax)" title="Turtle (syntax)">Turtle</a></small></li>
<li><small><a href="TriG_(syntax)" title="TriG (syntax)">TriG</a></small></li>
<li><small><a href="Notation3" title="Notation3">Notation3</a></small></li>
<li><small><a href="N-Triples" title="N-Triples">N-Triples</a></small></li>
<li><small><a href="TriX_(serialization_format)" title="TriX (serialization format)">TriX</a> (no W3C standard)</small></li></ul></li>
<li><a href="Research_Resource_Identifier" class="mw-redirect" title="Research Resource Identifier">RRID</a></li>
<li><a href="SPARQL" title="SPARQL">SPARQL</a></li>
<li><a href="XML" title="XML">XML</a></li>
<li><a href="Semantic_HTML" title="Semantic HTML">Semantic HTML</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Schemas, ontologies and rules</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Common_Logic" title="Common Logic">Common Logic</a></li>
<li><a href="Web_Ontology_Language" title="Web Ontology Language">OWL</a></li>
<li><a href="RDF_Schema" title="RDF Schema">RDFS</a></li>
<li><a href="Rule_Interchange_Format" title="Rule Interchange Format">Rule Interchange Format</a></li>
<li><a href="Semantic_Web_Rule_Language" title="Semantic Web Rule Language">Semantic Web Rule Language</a></li>
<li><a href="SHACL" title="SHACL">SHACL</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Semantic annotation</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="COinS" title="COinS">COinS</a></li>
<li><a href="GRDDL" title="GRDDL">GRDDL</a></li>
<li><a href="Microdata_(HTML)" title="Microdata (HTML)">Microdata</a></li>
<li><a href="Microformat" title="Microformat">Microformats</a></li>
<li><a href="RDFa" title="RDFa">RDFa</a></li>
<li><a href="SAWSDL" title="SAWSDL">SAWSDL</a></li>
<li><a href="Facebook_Platform" title="Facebook Platform">Facebook Platform</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Common vocabularies</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="BIBFRAME" title="BIBFRAME">BIBFRAME</a></li>
<li><a href="Bibliographic_Ontology" title="Bibliographic Ontology">BIBO</a></li>
<li><a href="DOAP" title="DOAP">DOAP</a></li>
<li><a href="Dublin_Core" title="Dublin Core">Dublin Core</a></li>
<li><a href="Metadata_Object_Description_Schema" title="Metadata Object Description Schema">MODS</a>/<a href="Metadata_Authority_Description_Schema" title="Metadata Authority Description Schema">MADS</a></li>
<li><a href="FOAF" title="FOAF">FOAF</a></li>
<li><a href="Schema.org" title="Schema.org">Schema.org</a></li>
<li><a href="Semantically_Interlinked_Online_Communities" title="Semantically Interlinked Online Communities">SIOC</a></li>
<li><a href="Simple_Knowledge_Organization_System" title="Simple Knowledge Organization System">SKOS</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Microformat vocabularies</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="HAtom" title="HAtom">hAtom</a></li>
<li><a href="HCalendar" title="HCalendar">hCalendar</a></li>
<li><a href="HCard" title="HCard">hCard</a></li>
<li><a href="HProduct" title="HProduct">hProduct</a></li>
<li><a href="HRecipe" title="HRecipe">hRecipe</a></li>
<li><a href="HReview" title="HReview">hReview</a></li></ul>
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