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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
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<head>
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<title>RDF Site Summary 1.0 Modules: Dublin Core</title>
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<link rel="stylesheet" type="text/css" href="../../style.css"/>
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</head>
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<body>
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<h1>RDF Site Summary 1.0 Modules: Dublin Core</h1>
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<!-- Authors -->
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<h2><a name="authors">Authors</a></h2>
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<dl>
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<dt><a href="mailto:begeddov@jfinity.com">Gabe Beged-Dov</a>,
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<a href="http://www.jfinity.com">JFinity Systems LLC</a></dt>
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<dt><a href="mailto:daniel.brickley@bristol.ac.uk">Dan Brickley</a>,
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<a href="http://www.ilrt.bris.ac.uk/discovery/">ILRT</a></dt>
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<dt><a href="mailto:rael@oreilly.com">Rael Dornfest</a>,
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<a href="http://www.oreilly.com">O'Reilly & Associates</a></dt>
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<dt><a href="mailto:ian@calaba.com">Ian Davis</a>,
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<a href="http://www.calaba.com">Calaba, Ltd.</a></dt>
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<dt><a href="mailto:ldodds@ingenta.com">Leigh Dodds</a>,
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<a href="http://www.xmlhack.com">xmlhack</a></dt>
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<dt><a href="mailto:eisen@pobox.com">Jonathan Eisenzopf</a>,
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<a href="http://www.wwind.com">Whirlwind Interactive</a></dt>
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<dt><a href="mailto:david@moreover.com">David Galbraith</a>,
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<a href="http://www.moreover.com">Moreover.com</a></dt>
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<dt><a href="mailto:guha@guha.com">R.V. Guha</a>,
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<a href="http://www.guha.com">guha.com</a></dt>
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<dt><a href="mailto:ken@bitsko.slc.ut.us">Ken MacLeod</a>,
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<a href="http://bitsko.slc.ut.us/">(Independent)</a></dt>
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<dt><a href="mailto:emiller@oclc.org">Eric Miller</a>,
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<a href="http://www.oclc.org">Online Computer Library Center, Inc.</a></dt>
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<dt><a href="mailto:aaron@theinfo.org">Aaron Swartz</a>,
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<a href="http://www.theinfo.org">The Info Network</a></dt>
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<dt><a href="mailto:vdv@dyomedea.com">Eric van der Vlist</a>,
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<a href="http://www.dyomedea.com">Dyomedea</a></dt>
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</dl>
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<!-- Version -->
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<h2><a name="version">Version</a></h2>
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<p><strong>Latest Version:</strong> <a href="http://purl.org/rss/1.0/modules/dc/">http://purl.org/rss/1.0/modules/dc/</a></p>
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<div class="version">1.4.1 2000-12-20 (editor: <a href="mailto:sean@mysterylights.com">SBP</a> - cleaned up markup)</div>
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<div class="version">1.4 2000-12-09</div>
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<!-- Status -->
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<h2><a name="status">Status</a></h2>
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<p>
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<a href="http://www.egroups.com/surveys/rss-dev?id=444214">Release</a>
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</p>
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<!-- Rights -->
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<h2><a name="rights">Rights</a></h2>
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<p>
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Copyright © 2000 by the Authors.
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</p>
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<p>
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Permission to use, copy, modify and distribute the RDF Site Summary
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1.0 Specification and its accompanying documentation for any purpose
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and without fee is hereby granted in perpetuity, provided that the
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above copyright notice and this paragraph appear in all copies.
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The copyright holders make no representation about the suitability
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of the specification for any purpose. It is provided "as is"
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without expressed or implied warranty.
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</p>
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<p>
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This copyright applies to the RDF Site Summary 1.0 Specification
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and accompanying documentation and does not extend to the RSS
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format itself.
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</p>
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<h2><a name="description">Description</a></h2>
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<p>
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The
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<a href="http://purl.org/dc/documents/rec-dces-19990702.htm">Dublin Core Metadata Element Set</a>
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provides some standard metadata elements. These are listed below for your quick
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reference; be sure to visit the
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<a href="http://purl.org/dc/documents/rec-dces-19990702.htm">Dublin Core</a>
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site for more specifics.
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</p>
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<h2><a name="namespaces">Namespace Declarations</a></h2>
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<ul>
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<li><b>xmlns:dc="http://purl.org/dc/elements/1.1/"</b></li>
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</ul>
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<h2><a name="model">Model</a></h2>
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<p>
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<em><channel>, <item>, <image>, and <textinput> Elements:</em> </p>
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<ul>
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<li><b><dc:title></b> ( #PCDATA )</li>
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<li><b><dc:creator></b> ( #PCDATA )</li>
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<li><b><dc:subject></b> ( #PCDATA )</li>
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<li><b><dc:description></b> ( #PCDATA )</li>
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<li><b><dc:publisher></b> ( #PCDATA )</li>
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<li><b><dc:contributor></b> ( #PCDATA )</li>
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<li><b><dc:date></b> ( #PCDATA ) [<a href="http://www.w3.org/TR/NOTE-datetime">W3CDTF</a>]</li>
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<li><b><dc:type></b> ( #PCDATA )</li>
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<li><b><dc:format></b> ( #PCDATA )</li>
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<li><b><dc:identifier></b> ( #PCDATA )</li>
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<li><b><dc:source></b> ( #PCDATA )</li>
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<li><b><dc:language></b> ( #PCDATA )</li>
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<li><b><dc:relation></b> ( #PCDATA )</li>
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<li><b><dc:coverage></b> ( #PCDATA )</li>
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<li><b><dc:rights></b> ( #PCDATA )</li>
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</ul>
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<p>
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While the present version of the Dublin Core module follows the
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standard practice of string literal values, we expect the module
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to evolve richer semantics. The form currently under discussion
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works with a taxonomy module to provide a resource-based topic
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definition ("as in...") while also providing a string literal
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via rdf:value. This is termed, in some circles, a "dumbed down"
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approach; richer semantics for those who can deal with them,
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plain text default value for those who can't / aren't interested.
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</p>
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<p>
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For example:
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</p>
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<pre>...
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<rdf:RDF
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<span class="example-rdf">xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"</span>
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<span class="example-dc">xmlns:dc="http://purl.org/dc/elements/1.1/"</span>
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<span class="example-taxo">xmlns:taxo="http://purl.org/rss/1.0/modules/taxonomy/"</span>
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xmlns="http://purl.org/rss/1.0/"
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>
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...
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<item rdf:about="http://c.moreover.com/click/here.pl?r123">
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<title>XML: A Disruptive Technology</title>
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<link>http://c.moreover.com/click/here.pl?r123</link>
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<span class="example-dc"><dc:subject></span>
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<span class="example-rdf"><rdf:Description></span>
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<span class="example-taxo"><taxo:topic rdf:resource="http://dmoz.org/Computers/Data_Formats/Markup_Languages/XML/" /></span>
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<span class="example-rdf"><rdf:value>XML</rdf:value>
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</rdf:Description></span>
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<span class="example-dc"></dc:subject>
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<dc:subject></span>
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<span class="example-rdf"><rdf:Description></span>
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<span class="example-taxo"><taxo:topic rdf:resource="http://www.oreillynet.com/meerkat/?c=cat23" /></span>
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<span class="example-rdf"><rdf:value>Data: XML</rdf:value>
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</rdf:Description></span>
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<span class="example-dc"></dc:subject></span>
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</item>
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...</pre>
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<p>
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Sample RSS documents illustrating <a href="http://purl.org/rss/1.0/samples/dc_simple.rss">simple</a> (current) and
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<a href="http://purl.org/rss/1.0/samples/dc_rich.rss">rich</a> versions are available for your reference.
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The rich version will be maintained so as to be compliant with current
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discussion.
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</p>
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<h2><a name="example">Example</a></h2>
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<pre><?xml version="1.0" encoding="utf-8"?>
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<rdf:RDF
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xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
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<span class="example-dc">xmlns:dc="http://purl.org/dc/elements/1.1/"</span>
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xmlns="http://purl.org/rss/1.0/"
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>
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<channel rdf:about="http://meerkat.oreillynet.com/?_fl=rss1.0">
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<title>Meerkat</title>
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<link>http://meerkat.oreillynet.com</link>
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<description>Meerkat: An Open Wire Service</description>
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<span class="example-dc"><dc:publisher>The O'Reilly Network</dc:publisher>
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<dc:creator>Rael Dornfest (mailto:rael@oreilly.com)</dc:creator>
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<dc:rights>Copyright © 2000 O'Reilly &amp; Associates, Inc.</dc:rights>
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<dc:date>2000-01-01T12:00+00:00</dc:date></span>
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<image rdf:resource="http://meerkat.oreillynet.com/icons/meerkat-powered.jpg" />
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<items>
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<rdf:Seq>
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<rdf:li resource="http://c.moreover.com/click/here.pl?r123" />
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</rdf:Seq>
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</items>
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<textinput rdf:resource="http://meerkat.oreillynet.com" />
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</channel>
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<image rdf:about="http://meerkat.oreillynet.com/icons/meerkat-powered.jpg">
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<title>Meerkat Powered!</title>
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<url>http://meerkat.oreillynet.com/icons/meerkat-powered.jpg</url>
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<link>http://meerkat.oreillynet.com</link>
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</image>
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<item rdf:about="http://c.moreover.com/click/here.pl?r123">
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<title>XML: A Disruptive Technology</title>
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<link>http://c.moreover.com/click/here.pl?r123</link>
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<span class="example-dc"><dc:description>
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XML is placing increasingly heavy loads on the existing technical
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infrastructure of the Internet.
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</dc:description>
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<dc:publisher>The O'Reilly Network</dc:publisher>
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<dc:creator>Simon St.Laurent (mailto:simonstl@simonstl.com)</dc:creator>
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<dc:rights>Copyright © 2000 O'Reilly &amp; Associates, Inc.</dc:rights>
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<dc:subject>XML</dc:subject></span>
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</item>
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<textinput rdf:about="http://meerkat.oreillynet.com">
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<title>Search Meerkat</title>
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<description>Search Meerkat's RSS Database...</description>
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<name>s</name>
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<link>http://meerkat.oreillynet.com/</link>
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</textinput>
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</rdf:RDF></pre>
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</html>
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