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} </script><script type="text/javascript">if ( window.mediaWiki ) { mw.loader.load(["mediawiki.page.startup"]); } </script> </head> <body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-XML_namespace action-view skin-vector"> <div id="mw-page-base" class="noprint"></div> <div id="mw-head-base" class="noprint"></div>  <div id="content"> <a id="top"></a> <div id="mw-js-message" style="display:none;"></div>  <div id="siteNotice"></div>   <h1 id="firstHeading" class="firstHeading">XML namespace</h1>   <div id="bodyContent">  <div id="siteSub">From Wikipedia, the free encyclopedia</div>   <div id="contentSub"></div>   <div id="jump-to-nav"> Jump to: <a href="#mw-head">navigation</a>, <a href="#p-search">search</a> </div>   <div lang="en" dir="ltr" class="mw-content-ltr"><p><b>XML namespaces</b> are used for providing uniquely named elements and attributes in an <a href="/web/20120127001805/http://en.wikipedia.org/wiki/XML" title="XML">XML</a> document. They are defined in a <a href="/web/20120127001805/http://en.wikipedia.org/wiki/W3C" title="W3C" class="mw-redirect">W3C</a> <a href="/web/20120127001805/http://en.wikipedia.org/wiki/W3C_recommendation" title="W3C recommendation">recommendation</a>.<sup id="cite_ref-0" class="reference"><a href="#cite_note-0"><span>[</span>1<span>]</span></a></sup> An XML instance may contain element or attribute names from more than one XML vocabulary. If each vocabulary is given a <a href="/web/20120127001805/http://en.wikipedia.org/wiki/Namespace_(computer_science)" title="Namespace (computer science)">namespace</a>, the ambiguity between identically named elements or attributes can be resolved.</p> <p>A simple example would be to consider an XML instance that contained references to a customer and an ordered product. Both the customer element and the product element could have a child element named <b>id</b>. References to the <b>id</b> element would therefore be ambiguous; placing them in different namespaces would remove the ambiguity.</p> <table id="toc" class="toc"> <tr> <td> <div id="toctitle"> <h2>Contents</h2> </div> <ul> <li class="toclevel-1 tocsection-1"><a href="#Namespace_names"><span class="tocnumber">1</span> <span class="toctext">Namespace names</span></a></li> <li class="toclevel-1 tocsection-2"><a href="#Namespace_declaration"><span class="tocnumber">2</span> <span class="toctext">Namespace declaration</span></a></li> <li class="toclevel-1 tocsection-3"><a href="#Namespace_undeclaration"><span class="tocnumber">3</span> <span class="toctext">Namespace undeclaration</span></a></li> <li class="toclevel-1 tocsection-4"><a href="#Namespaces_in_APIs_and_XML_object_models"><span class="tocnumber">4</span> <span class="toctext">Namespaces in APIs and XML object models</span></a></li> <li class="toclevel-1 tocsection-5"><a href="#See_also"><span class="tocnumber">5</span> <span class="toctext">See also</span></a></li> <li class="toclevel-1 tocsection-6"><a href="#References"><span class="tocnumber">6</span> <span class="toctext">References</span></a></li> <li class="toclevel-1 tocsection-7"><a href="#External_links"><span class="tocnumber">7</span> <span class="toctext">External links</span></a></li> </ul> </td> </tr> </table> <h2><span class="editsection">[<a href="/web/20120127001805/http://en.wikipedia.org/w/index.php?title=XML_namespace&action=edit&section=1" title="Edit section: Namespace names">edit</a>]</span> <span class="mw-headline" id="Namespace_names">Namespace names</span></h2> <p>A <i>namespace name</i> is a <a href="/web/20120127001805/http://en.wikipedia.org/wiki/Uniform_resource_identifier" title="Uniform resource identifier">uniform resource identifier</a> (URI). Typically, the URI chosen for the namespace of a given XML vocabulary describes a resource under the control of the author or organisation defining the vocabulary, such as a <a href="/web/20120127001805/http://en.wikipedia.org/wiki/Uniform_resource_locator" title="Uniform resource locator">URL</a> for the author's Web server. However, the namespace specification does not require nor suggest that the namespace URI be used to retrieve information; it is simply treated by an XML parser as a string. For example, the document at <a rel="nofollow" class="external free" href="https://web.archive.org/web/20120127001805/http://www.w3.org/1999/xhtml">http://www.w3.org/1999/xhtml</a> itself does not contain any code. It simply describes the <a href="/web/20120127001805/http://en.wikipedia.org/wiki/XHTML" title="XHTML">XHTML</a> namespace to human readers. Using a URI (such as "http://www.w3.org/1999/xhtml") to identify a namespace, rather than a simple string (such as "xhtml"), reduces the probability of different namespaces using duplicate identifiers.</p> <p>Although the term <i>namespace URI</i> is widespread, the W3C Recommendation refers to it as the <i>namespace name</i>. The specification is not entirely prescriptive about the precise rules for namespace names (it does not explicitly say that parsers must reject documents where the namespace name is not a valid <a href="/web/20120127001805/http://en.wikipedia.org/wiki/Uniform_Resource_Identifier" title="Uniform Resource Identifier" class="mw-redirect">Uniform Resource Identifier</a>), and many XML parsers allow any character string to be used. In version 1.1 of the recommendation, the namespace name becomes an <a href="/web/20120127001805/http://en.wikipedia.org/wiki/Internationalized_Resource_Identifier" title="Internationalized Resource Identifier">Internationalized Resource Identifier</a>, which licenses the use of non-ASCII characters that in practice were already accepted by nearly all XML software. The term <i>namespace URI</i> persists, however, not only in popular usage, but also in many other specifications from W3C and elsewhere.</p> <p>Following publication of the Namespaces recommendation, there was an intensive debate about how a relative URI should be handled, with some intensely arguing that it should simply be treated as a character string, and others arguing with conviction that it should be turned into an absolute URI by resolving it against the base URI of the document.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span>[</span>2<span>]</span></a></sup> The result of the debate was a ruling from W3C that relative URIs were deprecated.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span>[</span>3<span>]</span></a></sup></p> <p>The use of URIs taking the form of URLs in the http scheme (such as <i><a rel="nofollow" class="external free" href="https://web.archive.org/web/20120127001805/http://www.w3.org/1999/xhtml">http://www.w3.org/1999/xhtml</a></i>) is common, despite the absence of any formal relationship with the HTTP protocol. The Namespaces specification does not say what should happen, if such a URL is dereferenced (that is, if software attempts to retrieve a document from this location). One convention adopted by some users is to place a <a href="/web/20120127001805/http://en.wikipedia.org/wiki/RDDL" title="RDDL">RDDL</a> document at the location.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span>[</span>4<span>]</span></a></sup> In general, however, users should assume that the namespace URI is simply a name, not the address of a document on the Web.</p> <h2><span class="editsection">[<a href="/web/20120127001805/http://en.wikipedia.org/w/index.php?title=XML_namespace&action=edit&section=2" title="Edit section: Namespace declaration">edit</a>]</span> <span class="mw-headline" id="Namespace_declaration">Namespace declaration</span></h2> <p>An XML namespace is declared using the reserved XML pseudo-attribute <code>xmlns</code> or <code>xmlns:<i>prefix</i></code>, the value of which must be a valid <a href="#Namespace_names">namespace name</a>.</p> <p>For example, the following declaration maps the "xhtml:" prefix to the XHTML namespace:</p> <pre> xmlns:xhtml="http://www.w3.org/1999/xhtml" </pre> <p>Any element or attribute whose name starts with the prefix "xhtml:" is considered to be in the XHTML namespace, if it or an ancestor has the above namespace declaration.</p> <p>It is also possible to declare a default namespace. For example:</p> <pre> xmlns="http://www.w3.org/1999/xhtml" </pre> <p>In this case, any element without a namespace prefix is considered to be in the XHTML namespace, if it or an ancestor has the above default namespace declaration.</p> <p>Attributes are never subject to the default namespace. An attribute without an explicit namespace prefix is considered not to be in any namespace.</p> <h2><span class="editsection">[<a href="/web/20120127001805/http://en.wikipedia.org/w/index.php?title=XML_namespace&action=edit&section=3" title="Edit section: Namespace undeclaration">edit</a>]</span> <span class="mw-headline" id="Namespace_undeclaration">Namespace undeclaration</span></h2> <p>When an element carries the attribute <code>xmlns=""</code>, the default namespace for that element and its descendants reverts to "no namespace": that is, unprefixed names are considered not to be in any namespace.</p> <p>XML Namespaces 1.1 also introduces the option to undeclare other namespace prefixes. For example, if the attribute <code>xmlns:p=""</code> appears on an element, the namespace prefix <i>p</i> is no longer in scope (and therefore cannot be used) on that element or on its descendants, unless reintroduced by another namespace declaration.</p> <h2><span class="editsection">[<a href="/web/20120127001805/http://en.wikipedia.org/w/index.php?title=XML_namespace&action=edit&section=4" title="Edit section: Namespaces in APIs and XML object models">edit</a>]</span> <span class="mw-headline" id="Namespaces_in_APIs_and_XML_object_models">Namespaces in APIs and XML object models</span></h2> <p>Different specifications have taken different approaches on how namespace information is presented to applications.</p> <p>Nearly all programming models allow the name of an element or attribute node to be retrieved as a three-part name: the local name, the namespace prefix, and the namespace URI. Applications should avoid attaching any significance to the choice of prefix, but the information is provided because it can be helpful to human readers. Names are considered equal, if the namespace URI and local name match.</p> <p>In addition, most models provide some way of determining which namespaces have been declared for a given element. This information is needed because some XML vocabularies allow qualified names (containing namespace prefixes) to appear in the content of elements or attributes, as well as in their names. There are three main ways this information can be provided:</p> <ul> <li>As attribute nodes named "xmlns" or "xmlns:xxx", exactly as the namespaces are written in the source XML document. This is the model presented by <a href="/web/20120127001805/http://en.wikipedia.org/wiki/Document_Object_Model" title="Document Object Model">DOM</a>.</li> </ul> <ul> <li>As namespace declarations: distinguished from attributes, but corresponding one-to-one with the relevant attributes in the source XML document. This is the model presented by <a href="/web/20120127001805/http://en.wikipedia.org/wiki/JDOM" title="JDOM">JDOM</a>.</li> </ul> <ul> <li>As in-scope namespace bindings: in this model, the application is able to determine which namespaces are in scope for any given element, but is not able to determine which elements contain the actual declarations. This is the model used in <a href="/web/20120127001805/http://en.wikipedia.org/wiki/XPath" title="XPath">XPath</a>, <a href="/web/20120127001805/http://en.wikipedia.org/wiki/XSLT" title="XSLT">XSLT</a>, and <a href="/web/20120127001805/http://en.wikipedia.org/wiki/XQuery" title="XQuery">XQuery</a>.</li> </ul> <h2><span class="editsection">[<a href="/web/20120127001805/http://en.wikipedia.org/w/index.php?title=XML_namespace&action=edit&section=5" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h2> <ul> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Namespace" title="Namespace">Namespace</a></li> </ul> <h2><span class="editsection">[<a href="/web/20120127001805/http://en.wikipedia.org/w/index.php?title=XML_namespace&action=edit&section=6" title="Edit section: References">edit</a>]</span> <span class="mw-headline" id="References">References</span></h2> <ol class="references"> <li id="cite_note-0"><b><a href="#cite_ref-0">^</a></b> <span class="citation web">Bray, Tim; Dave Hollander, Andrew Layman, Richard Tobin, Henry S. Thompson (December 2009). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120127001805/http://www.w3.org/TR/xml-names/">"Namespaces in XML 1.0"</a>. <a href="/web/20120127001805/http://en.wikipedia.org/wiki/W3C" title="W3C" class="mw-redirect">W3C</a><span class="printonly">. <a rel="nofollow" class="external free" href="https://web.archive.org/web/20120127001805/http://www.w3.org/TR/xml-names/">http://www.w3.org/TR/xml-names/</a></span><span class="reference-accessdate">. Retrieved 9 October 2010</span>.</span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=Namespaces+in+XML+1.0&rft.atitle=&rft.aulast=Bray&rft.aufirst=Tim&rft.au=Bray%2C%26%2332%3BTim&rft.date=December+2009&rft.pub=%5B%5BW3C%5D%5D&rft_id=http%3A%2F%2Fwww.w3.org%2FTR%2Fxml-names%2F&rfr_id=info:sid/en.wikipedia.org:XML_namespace"><span style="display: none;"> </span></span></li> <li id="cite_note-1"><b><a href="#cite_ref-1">^</a></b> <span class="citation" id="CITEREFLeigh_Dodds2000">Leigh Dodds (24 May 2000), <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120127001805/http://www.xml.com/pub/a/2000/05/24/deviant/index.html"><i>News from the trenches</i></a><span class="printonly">, <a rel="nofollow" class="external free" href="https://web.archive.org/web/20120127001805/http://www.xml.com/pub/a/2000/05/24/deviant/index.html">http://www.xml.com/pub/a/2000/05/24/deviant/index.html</a></span></span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=News+from+the+trenches&rft.aulast=Leigh+Dodds&rft.au=Leigh+Dodds&rft.date=24+May+2000&rft_id=http%3A%2F%2Fwww.xml.com%2Fpub%2Fa%2F2000%2F05%2F24%2Fdeviant%2Findex.html&rfr_id=info:sid/en.wikipedia.org:XML_namespace"><span style="display: none;"> </span></span></li> <li id="cite_note-2"><b><a href="#cite_ref-2">^</a></b> <span class="citation" id="CITEREFDan_Connolly2000">Dan Connolly (11 Sep 2000), <i>W3C XML Plenary decision on relative URI references in namespace declarations</i></span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=W3C+XML+Plenary+decision+on+relative+URI+references+in+namespace+declarations&rft.aulast=Dan+Connolly&rft.au=Dan+Connolly&rft.date=11+Sep+2000&rfr_id=info:sid/en.wikipedia.org:XML_namespace"><span style="display: none;"> </span></span></li> <li id="cite_note-3"><b><a href="#cite_ref-3">^</a></b> <span class="citation" id="CITEREFElliotte_Rusty_Harold2001">Elliotte Rusty Harold (20 Feb 2001), <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120127001805/http://www.oreillynet.com/pub/a/oreilly/xml/news/xmlnut2_0201.html"><i>RDDL Me This: What Does a Namespace URL Locate?</i></a><span class="printonly">, <a rel="nofollow" class="external free" href="https://web.archive.org/web/20120127001805/http://www.oreillynet.com/pub/a/oreilly/xml/news/xmlnut2_0201.html">http://www.oreillynet.com/pub/a/oreilly/xml/news/xmlnut2_0201.html</a></span></span><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=RDDL+Me+This%3A+What+Does+a+Namespace+URL+Locate%3F&rft.aulast=Elliotte+Rusty+Harold&rft.au=Elliotte+Rusty+Harold&rft.date=20+Feb+2001&rft_id=http%3A%2F%2Fwww.oreillynet.com%2Fpub%2Fa%2Foreilly%2Fxml%2Fnews%2Fxmlnut2_0201.html&rfr_id=info:sid/en.wikipedia.org:XML_namespace"><span style="display: none;"> </span></span></li> </ol> <h2><span class="editsection">[<a href="/web/20120127001805/http://en.wikipedia.org/w/index.php?title=XML_namespace&action=edit&section=7" title="Edit section: External links">edit</a>]</span> <span class="mw-headline" id="External_links">External links</span></h2> <ul> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20120127001805/http://www.w3.org/TR/REC-xml-names/">Namespaces in XML 1.0 (Third Edition)</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20120127001805/http://www.w3.org/TR/2006/REC-xml-names11-20060816/">Namespaces in XML 1.1 (Second Edition)</a></li> </ul> <table cellspacing="0" class="navbox" style="border-spacing:0;;"> <tr> <td style="padding:2px;"> <table cellspacing="0" class="nowraplinks collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit;;"> <tr> <th scope="col" style=";" class="navbox-title" colspan="2"> <div class="noprint plainlinks hlist navbar" style=""> <ul> <li class="nv-view"><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Template:W3C_standards" title="Template:W3C standards"><span style=";;background:none transparent;border:none;" title="View this template">v</span></a></li> <li class="nv-talk"><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Template_talk:W3C_standards" title="Template talk:W3C standards"><span style=";;background:none transparent;border:none;" title="Discuss this 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style=";padding-left:0em;padding-right:0em;;"> <div style="padding:0em 0.75em;"><a href="/web/20120127001805/http://en.wikipedia.org/wiki/W3C_recommendation" title="W3C recommendation">Recommendations</a></div> </th> <td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-odd"> <div style="padding:0em 0.25em"> <ul> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Canonical_XML" title="Canonical XML">Canonical XML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Compound_Document_Format" title="Compound Document Format">CDF</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Cascading_Style_Sheets" title="Cascading Style Sheets">CSS</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Document_Object_Model" title="Document Object Model">DOM</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/W3C_Geolocation_API" title="W3C Geolocation API">Geolocation API</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/HTML" title="HTML">HTML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Internationalization_Tag_Set" title="Internationalization Tag Set">ITS</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/MathML" title="MathML">MathML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Web_Ontology_Language" title="Web Ontology Language">OWL</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/P3P" title="P3P">P3P</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Pronunciation_Lexicon_Specification" title="Pronunciation Lexicon Specification">PLS</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Resource_Description_Framework" title="Resource Description Framework">RDF</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/RDF_Schema" title="RDF Schema">RDF Schema</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Semantic_Interpretation_for_Speech_Recognition" title="Semantic Interpretation for Speech Recognition">SISR</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Simple_Knowledge_Organization_System" title="Simple Knowledge Organization System">SKOS</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Synchronized_Multimedia_Integration_Language" title="Synchronized Multimedia Integration Language">SMIL</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/SOAP" title="SOAP">SOAP</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Speech_Recognition_Grammar_Specification" title="Speech Recognition Grammar Specification">SRGS</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Speech_Synthesis_Markup_Language" title="Speech Synthesis Markup Language">SSML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Scalable_Vector_Graphics" title="Scalable Vector Graphics">SVG</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/SPARQL" title="SPARQL">SPARQL</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Timed_Text" title="Timed Text">Timed Text</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/VoiceXML" title="VoiceXML">VoiceXML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Web_Services_Description_Language" title="Web Services Description Language">WSDL</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XForms" title="XForms">XForms</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XHTML" title="XHTML">XHTML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XHTML%2BRDFa" title="XHTML+RDFa">XHTML+RDFa</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XInclude" title="XInclude">XInclude</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XLink" title="XLink">XLink</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XML" title="XML">XML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XML_Base" title="XML Base">XML Base</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XML_Encryption" title="XML Encryption">XML Encryption</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XML_Events" title="XML Events">XML Events</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XML_Information_Set" title="XML Information Set">XML Information Set</a></li> <li><strong class="selflink">XML namespace</strong></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XML_Schema_(W3C)" title="XML Schema (W3C)">XML Schema</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XML_Signature" title="XML Signature">XML Signature</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XPath" title="XPath">XPath</a> <a href="/web/20120127001805/http://en.wikipedia.org/wiki/XPath_1.0" title="XPath 1.0">1.0</a>, <a href="/web/20120127001805/http://en.wikipedia.org/wiki/XPath_2.0" title="XPath 2.0">2.0</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XPointer" title="XPointer">XPointer</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XProc" title="XProc">XProc</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XQuery" title="XQuery">XQuery</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Extensible_Stylesheet_Language" title="Extensible Stylesheet Language" class="mw-redirect">XSL</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XSL_Formatting_Objects" title="XSL Formatting Objects">XSL-FO</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XSLT" title="XSLT">XSLT</a> <small>(<a href="/web/20120127001805/http://en.wikipedia.org/wiki/XSLT_elements" title="XSLT elements">elements</a>)</small></li> </ul> </div> </td> </tr> <tr style="height:2px"> <td></td> </tr> <tr> <th scope="row" class="navbox-group" style=";padding-left:0em;padding-right:0em;;"> <div style="padding:0em 0.75em;">Notes</div> </th> <td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-even"> <div style="padding:0em 0.25em"> <ul> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XAdES" title="XAdES">XAdES</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XHTML%2BSMIL" title="XHTML+SMIL">XHTML+SMIL</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Extensible_User_Interface_Protocol" title="Extensible User Interface Protocol">XUP</a></li> </ul> </div> </td> </tr> <tr style="height:2px"> <td></td> </tr> <tr> <th scope="row" class="navbox-group" style=";padding-left:0em;padding-right:0em;;"> <div style="padding:0em 0.75em;">Working Drafts</div> </th> <td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-odd"> <div style="padding:0em 0.25em"> <ul> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Call_Control_eXtensible_Markup_Language" title="Call Control eXtensible Markup Language">CCXML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/CURIE" title="CURIE">CURIE</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/HTML5" title="HTML5">HTML5</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/InkML" title="InkML">InkML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Rule_Interchange_Format" title="Rule Interchange Format">RIF</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/SCXML" title="SCXML">SCXML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/SMIL_Timesheets" title="SMIL Timesheets">SMIL Timesheets</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/SXBL" title="SXBL">sXBL</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Web_Integration_Compound_Document" title="Web Integration Compound Document">WICD</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Extensible_Forms_Description_Language" title="Extensible Forms Description Language">XFDL</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XFrames" title="XFrames">XFrames</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XBL" title="XBL">XBL</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XHTML%2BMathML%2BSVG" title="XHTML+MathML+SVG">XHTML+MathML+SVG</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/XMLHttpRequest" title="XMLHttpRequest">XMLHttpRequest</a></li> </ul> </div> </td> </tr> <tr style="height:2px"> <td></td> </tr> <tr> <th scope="row" class="navbox-group" style=";padding-left:0em;padding-right:0em;;"> <div style="padding:0em 0.75em;">Guidelines</div> </th> <td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-even"> <div style="padding:0em 0.25em"> <ul> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines">Web Content Accessibility Guidelines</a></li> </ul> </div> </td> </tr> <tr style="height:2px"> <td></td> </tr> <tr> <th scope="row" class="navbox-group" style=";padding-left:0em;padding-right:0em;;"> <div style="padding:0em 0.75em;">Initiative</div> </th> <td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-odd"> <div style="padding:0em 0.25em"> <ul> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/W3C_MMI" title="W3C MMI">Multimodal Interaction Activity</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/W3C_Markup_Validation_Service" title="W3C Markup Validation Service">Markup Validation Service</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Web_Accessibility_Initiative" title="Web Accessibility Initiative">Web Accessibility Initiative</a></li> </ul> </div> </td> </tr> <tr style="height:2px"> <td></td> </tr> <tr> <th scope="row" class="navbox-group" style=";padding-left:0em;padding-right:0em;;"> <div style="padding:0em 0.75em;">Deprecated</div> </th> <td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;;;" class="navbox-list navbox-even"> <div style="padding:0em 0.25em"> <ul> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/C-HTML" title="C-HTML">C-HTML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Handheld_Device_Markup_Language" title="Handheld Device Markup Language">HDML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/JavaScript_Style_Sheets" title="JavaScript Style Sheets">JSSS</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Precision_Graphics_Markup_Language" title="Precision Graphics Markup Language">PGML</a></li> <li><a href="/web/20120127001805/http://en.wikipedia.org/wiki/Vector_Markup_Language" title="Vector Markup Language">VML</a></li> </ul> </div> </td> </tr> </table> </td> </tr> <tr style="height:2px"> <td></td> </tr> <tr> <th scope="row" class="navbox-group" style=";background-color:#e6e6ff;;">Organizations</th> <td style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px;line-height:1.4em;;;" class="navbox-list navbox-even hlist"> <div style="padding:0em 0.25em"> <ul> <li><a 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