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516 lines
12 KiB
516 lines
12 KiB
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
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<title>W3C POWDER Working Group</title>
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<link href="/StyleSheets/base.css" rel="stylesheet" type="text/css"
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/>
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-->
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<link rel="stylesheet" type="text/css" href="http://www.w3.org/Guide/guide2006.css" />
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<style type="text/css">
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h2,h3 { display: block; }
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</style>
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</head>
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<body>
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<div id="header">
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<span class="logo"><a href="/"><img src="/Icons/WWW/w3c_home_nb" alt="W3C"
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border="0" height="48" width="72" /></a></span>
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<div class="breadcrumb">
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<a href="/2001/sw/">Semantic Web</a> →
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<h1>Protocol for Web Description Resources (POWDER) Working Group </h1>
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</div>
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<p class="baseline">The POWDER Working Group is specifying a protocol for
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publishing descriptions of (e.g. metadata about) Web resources using <a
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href="/RDF/">RDF</a>, <a
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href="/2004/OWL/">OWL</a>, and <a
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href="/Protocols/">HTTP</a>.</p>
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</div>
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<div class="toc">
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<h4>Also On This Page →</h4>
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<ul>
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<!--
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<li style="display: none"><a href="#start">Start</a> ·</li>
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<li><a href="#sched">Schedule/Deliverables/Milestones</a> ·</li>
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-->
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<li><a href="#wg">Working Group</a> ·</li>
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<li><a href="#specs">Publications</a> ·</li>
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<li><a href="#tools">Tools</a> · </li>
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<li><a href="#mailing">Mailing Lists & Blogs</a> ·</li>
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<li><a href="#dependencies">Relationship with Other W3C Work</a></li>
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</ul>
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</div>
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<div class="events box">
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<h4 id="current">Current and Upcoming Events</h4>
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<ul>
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<li><strong class="date">1 September '09</strong> POWDER is a W3C Recommendation!</li>
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</ul>
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<div>
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<small><a href="/Member/Eventscal">… more W3C Events</a></small></div>
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</div>
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<div class="toolbox box" style="margin-bottom: 1em">
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<h4>Nearby</h4>
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<ul>
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<li>Read our <a href="blog">Blog</a></li>
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<li><a href="Group">Member-only Group page</a></li>
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<li>Mailing list archives: <a
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href="http://lists.w3.org/Archives/Public/public-powderwg/">public-powderwg</a>,
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<a
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href="http://lists.w3.org/Archives/Member/member-powderwg/">member-powderwg</a></li>
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</ul>
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</div>
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<div>
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<p style="font-weight: bold">The POWDER Working Group is closed. This page is maintained for historial purposes only.</p>
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</div>
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<div>
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<h2 id="wg">POWDER Working Group</h2>
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<p>The <strong><a href="Group/">POWDER Working Group</a></strong>
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(<a href="http://cgi.w3.org/MemberAccess/AccessRequest">member only link</a>)
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is delighted that its <a href="/2007/02/powder_charter">chartered</a> work is done with the publication of the document suite as Recommendations.</p>
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<p>POWDER has superseded <a href="http://www.w3.org/PICS/"><abbr title="Platform for Internet Content Selection">PICS</abbr></a>
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as the recommended method for describing Web sites and building applications that act on such descriptions.
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A comparison of PICS and POWDER is <a href="http://www.w3.org/2009/08/pics_superseded.html">available separately</a>.</p>
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</div>
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<div>
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<h2 id="specs">Publications</h2>
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<dl>
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<dt id="dr"><a href="http://www.w3.org/TR/powder-dr/">POWDER: Description Resources</a></dt>
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<dd>W3C Recommendation 1 September 2009</dd>
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<dt><a href="http://www.w3.org/TR/powder-grouping/">POWDER: Grouping of Resources</a></dt>
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<dd>W3C Recommendation 1 September 2009</dd>
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<dt><a href="http://www.w3.org/TR/powder-formal/">POWDER: Formal Semantics</a></dt>
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<dd>W3C Recommendation 1 September 2009</dd>
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<dt><a href="http://www.w3.org/TR/2009/NOTE-powder-primer-20090901/">POWDER: Primer</a></dt>
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<dd>W3C Working Group Note 1 September 2009</dd>
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<dt><a href="http://www.w3.org/TR/powder-test/">POWDER: Test Suite</a></dt>
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<dd>W3C Working Group Note 10 September 2009</dd>
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<dt><a href="/TR/2007/NOTE-powder-use-cases-20071031">POWDER: Use Cases and Requirements</a></dt>
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<dd>W3C Working Group Note, 31 October 2007</dd>
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<dt><a href="http://www.w3.org/2007/05/powder-s"> POWDER: POWDER-S Vocabulary (WDRS)</a></dt>
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<dd>Namespace document 30 April 2009</dd>
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<dt><a href="http://www.w3.org/2007/05/powder">XML Schema for POWDER and POWDER-BASE</a></dt>
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<dd>This is the namespace document/schema for POWDER. The namespace URI (<a href="http://www.w3.org/2007/05/powder">http://www.w3.org/2007/05/powder</a>)
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is dereferenced to a schema at http://www.w3.org/2007/05/powder/wdr.xsd which in turn imports two others at
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http://www.w3.org/2007/05/powder/wdrb-p.xsd and http://www.w3.org/2007/05/powder/wdrb-c.xsd</dd>
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</dl>
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</div>
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<div>
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<h2 id="tools">Tools</h2>
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<dl>
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<dt id="powder-validator"><a href="http://i-sieve.com/powdervalidator/">POWDER Validator</a></dt>
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<dd>This is part of a suite of tools developed and maintained by <a href="http://i-sieve.com/powder/">i-sieve Technologies</a>.</dd>
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<dt id="pp1"><a href="http://i-sieve.com/powderprocessor/">POWDER Processor</a></dt>
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<dd>This tool implements all features of a POWDER Processor required for conformance as defined in the <a href="#dr">Description Resources
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document</a>. It uses some of the code from the validator, makes use of a MySQL database, and is written in Perl.</dd>
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<dt id="pp2"><a href="http://dawsec.dicom.uninsubria.it/andrea/ppp/">PHP POWDER Processor</a> (3P)</dt>
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<dd>A second conformant POWDER processor with different ancillary features.</dd>
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<dt id="sempp"><a href="http://transonto.sourceforge.net/">TransOnto, a Semantic POWDER Processor</a></dt>
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<dd>A knowledge transformation and migration system for transferring knowledge between semantic representations
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that acts as a POWDER-S processor. It uses <a href="http://jena.sourceforge.net/">Jena</a> and <a href="http://clarkparsia.com/pellet/">Pellet</a> and
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offers a command line interface.</dd>
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<dt id="p2pbt"><a href="http://i-sieve.com/cgi-bin/pdr_to_base.cgi">POWDER to POWDER-BASE transformation tool</a></dt>
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<dd>This uses a subset of the validator to validate a POWDER document and return a POWDER-BASE transformation of it.
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The script is documented on the <a href="http://i-sieve.com/powdervalidator/">validator</a> page.</dd>
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<dt id="p2bxslt"><a href="powder2powderBase.xsl">POWDER to POWDER-BASE XSLT</a></dt>
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<dd>Uses XSLT 2 to transform any POWDER document to the equivalent POWDER-BASE document.</dd>
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<dt id="b2sxslt"><a href="powderBase2powderS.xsl">POWDER-BASE to POWDER-S XSLT</a></dt>
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<dd>Uses only XSLT 1 to transform POWDER-BASE to POWDER-S</dd>
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<dt id="p2sxslt"><a href="powder2powderS.xsl">POWDER to POWDER-S XSLT</a></dt>
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<dd>This is a combined version of the two XSLTs. It is simply a copy of the POWDER to POWDER-BASE XSLT
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with an additional element that includes the POWDER-BASE to POWDER-S stylehseet. It is <strong>this</strong>
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stylesheet that is referenced in the GRDDL (<code>data-view:transformation</code>) attribute of POWDER's
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<a href="http://www.w3.org/2007/05/powder">XML Schema</a>.</dd>
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<dt id="grouptool"><a href="http://philarcher.org/cgi-bin/powder-group.cgi">POWDER Grouping Tester</a></dt>
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<dd>A tool to help develop and test POWDER IRI sets.</dd>
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</dl>
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<h3>Obsolete documents</h3>
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<dl>
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<dt><a href="/TR/2007/WD-powder-voc-20070925/">POWDER: Web Description Resources (WDR) Vocabulary</a></dt>
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<dd>W3C First Public Working Draft, 25 September 2007. This document was made obsolete by the development of the POWDER XML Schema.</dd>
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<dt><a href="http://www.w3.org/TR/powder-xsd/">POWDER: Web Description Resources Datatypes (WDRD)</a></dt>
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<dd>W3C Working Draft Draft 25 September 2007. This document was made obsolete by the development of the POWDER XML Schema.</dd>
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</dl>
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<h3>Members</h3>
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<p>The following W3C Member organizations have appointed participants to this
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Working Group (<a
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href="/2000/09/dbwg/details?group=40243">details</a>
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are Member-only):</p>
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<ul>
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<li>AOL</li>
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<li>Deutsche Telekom AG, T-Com</li>
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<li>FOSI (until November 2008)</li>
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<li>Fundación ONCE</li>
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<li>Institute of Informatics & Telecommunications (IIT), NCSR</li>
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<li>National Institute of Standards and Technology (NIST)</li>
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<li>Opera Software</li>
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<li>Segala (until October 2008)</li>
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<li>Vodafone</li>
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</ul>
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<h3 id="join">Joining the POWDER Working Group</h3>
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<p>The POWDER working group is now closed. More information <a href="/Consortium/">about the W3C</a>
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is available as is information about <a href="/Consortium/join">joining W3C</a>.</p>
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</div>
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<div>
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<h2 id="mailing">Mailing Lists & Blogs</h2>
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<ul>
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<li>Mailing list archives:
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<ul>
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<li><a href="http://lists.w3.org/Archives/Public/public-powderwg/"
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>public-powderwg</a> (technical discussion),</li>
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<li><a href="http://lists.w3.org/Archives/Member/member-powderwg/"
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>member-powderwg</a> (administrative, Member-only)</li>
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</ul>
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</li>
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<li>Our <a href="blog">POWDER blog</a>, updated weekly (<a href="/blog/powder?tempskin=_rdf">RSS feed</a>)</li>
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</ul>
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</div>
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<div>
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<h2 id="dependencies">Relationship with Other W3C Work</h2>
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<dl>
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<dt><a href="/2005/MWI/BPWG/">Mobile Web Best Practices</a></dt>
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<dd>The development of the mobileOK trustmark is an important use case and
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test case for description resources.</dd>
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<dt><a href="/2005/rules/">Rule Interchange Format</a></dt>
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<dd>POWDER has an inherent need for rules to define the scope of a description
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and for when one description should be used in preference to another.
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Furthermore, some applications will store user preferences as rules and it it
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will be beneficial to be able to copy these user preferences between
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clients. Cooperation and discussion with RIF is therefore important.</dd>
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<dt><a href="/WAI/">Web Accessibility Initiative (WAI)</a></dt>
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<dd>The POWDER Working Group seeks close cooperation with WAI on the labelling
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of resources that meet WCAG guidelines and with the ERT WG on integration
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with EARL.</dd>
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<dt><a href="/2001/tag/">Technical Architecture Group</a></dt>
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<dd>TAG has published a number of relevant findings and POWDER will need to
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ensure conformance with these. For example the April 2006 finding on <a
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href="/2001/tag/doc/mime-respect">Authoritative
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Metadata</a>.</dd>
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<dt><a href="/2006/07/SWD/">Semantic Web Deployment Working Group</a></dt>
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<dd>POWDER will need to draw on this group's expertise and guidance,
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particularly in relation to the applications of POWDER deliverables outside
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Description Resources.</dd>
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<dt><a href="/2007/uwa/">Ubiquitous Web Applications Working Group</a></dt>
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<dd>There may be features in common between the protocol for accessing
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description resources developed by POWDER and a protocol useful for
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CC/PP. The POWDER Working Group should track future work on a protocol
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for <a href="/TR/CCPP-struct-vocab/">CC/PP</a>
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in the Ubiquitous Web Applications Working Group
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(successor to the Device Independence Working Group)
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and identify any such opportunities for common features.</dd>
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<dt><a href="/XML/">XML Activity</a></dt>
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<dd>POWDER will need to explore non-Semantic Web technologies as alternative
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approaches to meeting its aims. In particular input will be sought from the
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<a href="/XML/Query/">XML Query (XQuery)</a> group on the
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resource grouping Recommendation.</dd>
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</dl>
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</div>
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<hr />
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<address>
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<a href="http://philarcher.org/">Phil Archer</a>, Chair<br />
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<a href="mailto:mdw@w3.org">Matt Womer</a>, W3C/ERCIM, staff contact<br/>
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<small>$Revision: 1.71 $ of $Date: 2009/11/24 15:33:35 $</small>
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</address>
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</body>
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</html>
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