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<HTML><HEAD><TITLE>CKAN LOD Validator - Help</TITLE><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><script type="text/javascript" src="autocomplete/jquery.js"></script><script type='text/javascript' src='autocomplete/jquery.bgiframe.min.js'></script><script type='text/javascript' src='autocomplete/jquery.ajaxQueue.js'></script><script type='text/javascript' src='autocomplete/thickbox-compressed.js'></script><script type='text/javascript' src='autocomplete/jquery.autocomplete.js'></script><link rel="stylesheet" type="text/css" href="autocomplete/main.css" /><link rel="stylesheet" type="text/css" href="autocomplete/jquery.autocomplete.css" /><link rel="stylesheet" type="text/css" href="autocomplete/thickbox.css" /><script> $(document).ready(function() { $("#package").autocomplete("autocomplete.php", { matchContains: true, width: 300, selectFirst: false }); });</script><script type="text/javascript"> function KeyCode(ev) { if(ev){ TastenWert = ev.which } else { TastenWert = window.event.keyCode } if (TastenWert == 13) { document.form.submit(); } } document.onkeypress = KeyCode;</script><style type=text/css> body { background: white; color: black; font-family: sans-serif; line-height: 1.4em; padding: 2.5em 3em; margin: 0; } :link { color: #00c; } :visited { color: #609; } a:link img { border: none; } a:visited img { border: none; } .source { font-size: 10px; color: #800; } h1, h2, h3, h4 { background: white; color: #800; } h1 { font: 170% sans-serif; margin: 0; } h2 { clear: both; font: 140% sans-serif; margin: 1.5em 0 -0.5em 0; padding-bottom:20px; } h3 { font: 120% sans-serif; margin: 0.5em 0; } h4 { font: 110% sans-serif; margin: 1em 0 0.5em 0; } h5 { font: bold 100% sans-serif; margin: 0.5em 0 0.3em 0;} h6 { font: small-caps 100% sans-serif; } .hide { display: none; } p { margin: 0.5em 0;} pre { background: #fff6bb; font-family: monospace; line-height: 1.2em; padding: 1em 2em; } dt { font-weight: bold; margin-top: 0; margin-bottom: 0; } dd { margin-top: 0; margin-bottom: 0; } code, tt { font-family: monospace; } ul.toc { list-style-type: none; } ol.toc li a { text-decoration: none; } .note { color: red; } #header { border-bottom: 1px solid #ccc; } #logo { float: right; } #logo a img { padding-left: 20px; background: white; } #authors { clear: right; float: right; font-size: 80%; text-align: right; } #content { clear: both; margin: 2em auto 0 0; text-align: justify } #download, #demo { float: left; font-family: sans-serif; margin: 1em 0 1.5em; text-align: center; width: 50%; } #download h2, #demo h2 { font-size: 125%; margin: 1.5em 0 -0.2em 0; } #download small, #demo small { color: #888; font-size: 80%; } #footer { border-top: 1px solid #ccc; color: #aaa; margin: 2em 0 0; } th { text-align: left; font-weight: bold; font-size: 95%; margin: 0px; padding: 3px 3px 8px 3px; } .red { color: #800; font-weight: bold; } .info { padding-left: 15px; } ol, ul, ul.info { padding-left: 30px; } table { border-collapse:collapse; } table, th, td { border: 1px solid black; } td { vertical-align: top; padding: 3px 3px 8px 3px; } h4 img { vertical-align: top; } </style></HEAD><BODY><div id="logo"> <a href="http://www.fu-berlin.de/"><img src="http://www4.wiwiss.fu-berlin.de/bizer/d2r-server/images/fu-logo.gif" alt="Freie Universität Berlin Logo" /></a></div><div id="header"> <h1 style="font-size: 250%">CKAN LOD Validator</h1></div><div> <a href="index.php">LOD Datasets on CKAN</a> | <a href="validate.php">Validate</a> | Help</div><div id="content"> <form action="validate.php" method="post" name="package"> <p style="margin-bottom:40px;">Search CKAN package: <input style="width: 300px;" size="500" id="package" name="package" onKeyPress="KeyCode;"/> <input type="submit" name="submit" value=">"/></p> </form><h3>How do I add a data set to CKAN or edit an existing data set?</h3><p><ol><li> Please register with <a href="http://www.ckan.net" class="external text" title="http://www.ckan.net">CKAN</a> before editing or adding any packages.</li><li> Please confirm that the data set does not already exist on CKAN before adding a new data set.</li><li> Add or edit the data set and provide as much additional information as possible (e.g. SPARQL endpoint, voiD description, license, and the topic of the data set) as described below. This information helps the community to know more about the development state of the Web of Linked Data and is made available via the CKAN API. </li><li> Please tag newly added data sets with <code><i>lod</i></code>. </li><li> If you are not aware of any in- or outlinks, tag it with <code><i>lodcloud.nolinks</i></code>.</li></ol></p> <h3>LOD Cloud Diagram Compliance Levels</h3> <h4><a name="level1"/>Level 1 (basic) </h4> <p>Please provide the following basic information about the data set:</p> <h5>CKAN Basic Information Fields</h5> <table> <tr> <th>Field name</th> <th>Description</th> <th>Format/Examples</th> </tr> <tr> <td>Name</td> <td>Unique ID for the data set on CKAN</td> <td>[a-z0-9-]+ "my-dataset"</td> </tr> <tr> <td>Title</td> <td>Full name of the data set</td> <td>"My Dataset"</td> </tr> <tr> <td>URL</td> <td>Link to data set homepage</td> <td>http://example.com/my-ds</td> </tr> <tr> <td>Author</td><td>Name of publishing org and/or person </td><td>"Talis (Leigh Dodds)" </td> </tr> <tr> <td>Author email<br/>Maintainer email </td><td>Contact email </td><td>[email protected] </td></tr> </table> <h5>CKAN Basic Information Fields: Tags</h5> <table> <tr> <th>Tag</th> <th>Purpose</th> </tr> <tr> <td><code>lod</code></td> <td>Identifies the data set as Linked Data</td> </tr> </table> <h4><a name="level2"/>Level 2 (minimal) </h4> <h5>CKAN Basic Information Fields: Tags</h5> <p>Please provide a topic tag for the data set. We will use the topic information to color the LOD cloud later. </p> <table> <tr> <th>Tag</th> <th>Purpose</th> </tr> <tr> <td><code><i><topic></i></code> </td><td>One of: <ul><li> <code>media</code> </li><li> <code>geographic</code> </li><li> <code>lifesciences</code> </li><li> <code>publications</code> (including library and museum data) </li><li> <code>government</code> </li><li> <code>ecommerce</code> </li><li> <code>socialweb</code> (people and their activities) </li><li> <code>usergeneratedcontent</code> (blog posts, discussions, pictures, ...) </li><li> <code>schemata</code> (structural resources, including vocabularies, ontologies, classifications, thesauri) </li><li> <code>crossdomain</code> </li></ul> </td></tr></table> <h5>CKAN Resource Links</h5> <p>Provide a link to an example URI in the Resources section.</p> <table> <tr> <td>RDF/XML example link </td><td><code>example/rdf+xml</code> </td><td>Link to an example data item within the data set (RDF/XML) </td></tr> <tr> <td>Turtle example link </td><td><code>example/turtle</code> </td><td>Link to an example data item within the data set (Turtle) </td></tr> <tr> <td>N-Triples example link </td><td><code>example/ntriples</code> </td><td>Link to an example data item within the data set (N-Triples) </td></tr> <tr> <td>HTML+RDFa example link </td><td><code>example/rdfa</code> </td><td>Link to an example data item within the data set (RDFa) </td> </tr> </table> <p>Provide links to the data set dump file(s) or the SPARQL endpoint.</p> <table> <tr> <td>SPARQL endpoint </td><td><code>api/sparql</code> </td><td>SPARQL endpoint </td> </tr> <tr> <th>Purpose</th><th>Format</b> </th><th>Description</th> </tr> <tr> <td>Download page </td><td> - </td><td>Download </td> </tr> <tr> <td>RDF/XML download </td><td><code>application/rdf+xml</code> </td><td>Download </td> </tr> <tr> <td>Turtle download </td><td><code>text/turtle</code> </td><td>Download </td> </tr> <tr> <td>N-Triples download </td><td><code>application/x-ntriples</code> </td><td>Download </td> </tr> <tr> <td>N-Quads download </td><td><code>application/x-nquads</code> </td><td>Download </td> </tr> </table> <h5>CKAN Extras</h5> <table> <tr> <td><b>Field name</b> </td><td><b>Description</b> </td><td><b>Format/Examples</b> </td></tr> <td>sparql_graph_name </td><td>Named graph in SPARQL store (if used by the SPARQL endpoint) </td><td><a href="http://species.geospecies.org" class="external free" title="http://species.geospecies.org">http://species.geospecies.org</a> </td></tr> <tr> </table> <p>Please provide size and linkage information.</p> <table> <tr> <td><b>Field name</b> </td><td><b>Description</b> </td><td><b>Format/Examples</b> </td></tr> <tr> <td>triples </td><td>Approximate size of the data set in RDF triples </td><td>100000, 62345123 </td></tr> <tr> <td>links:xxx </td><td>Number of RDF links pointing at data set xxx. Please provide separate links xxx statements for each data set linked to </td><td>20000 </td></tr></table> <h4><a name="level3"/>Level 3 (complete) </h4> <p>Please provide the following additional information about the data set. This information helps the community to know more about the development state of the Web of Linked Data and is made available via the CKAN API. </p> <h5>CKAN Basic Information Fields</h5> <table> <tr> <td><b>Field name</b> </td><td><b>Description</b> </td><td><b>Format/Examples</b> </td></tr> <tr> <td>Version </td><td>Last modification date or version of the data set </td><td>"2010-04 (3.5)", "2006", "beta" </td></tr> <tr> <td>Notes </td><td>Description of the data set </td><td>some free text </td></tr> <tr> <td>License </td><td>Standard license drop-down </td><td>OSI approved::MIT license </td></tr></table> <h5>CKAN Extras</h5> <table> <tr> <td><b>Field name</b> </td><td><b>Description</b> </td><td><b>Format/examples</b> </td></tr> <tr> <td>shortname </td><td>Short name for LOD bubble </td><td>"NY Times" </td></tr> <tr> <td>license_link </td><td>Custom license link </td><td><a href="http://example.com/so-sue-me" class="external free" title="http://example.com/so-sue-me">http://example.com/so-sue-me</a> </td></tr> <tr> <td>namespace </td><td>Instance namespace </td><td><a href="http://dbpedia.org/resource/" class="external free" title="http://dbpedia.org/resource/">http://dbpedia.org/resource/</a> </td></tr></table> <h5>CKAN Resource links</h5> <p>Links (other than dereferenceable URIs) that enable alternative access to the data set (e.g., via downloads or SPARQL endpoints) should be specified in the Resources section of the CKAN entry form. Please also provide links to the <a href="http://vocab.deri.ie/void/guide" class="external text" title="http://vocab.deri.ie/void/guide">voiD description</a> or <a href="http://sw.deri.org/2007/07/sitemapextension/" class="external text" title="http://sw.deri.org/2007/07/sitemapextension/">Semantic Web Sitemap</a> describing the data set. </p> <table> <tr> <td><b>Purpose</b> </td><td><b>Format</b> </td><td><b>Description</b> </td></tr> <tr> <td>voiD file</td> <td>meta/void</td> <td>voiD description</td> </tr> <tr> <td>XML Sitemap </td><td><code>meta/sitemap</code> </td><td>XML Sitemap </td></tr> <tr> <td>RDF Schema </td><td><code>meta/rdf-schema</code> </td><td>Download link to RDF/OWL Schema used by the data set (in addition to having dereferenceable vocabulary URIs) </td></tr> <tr> <td>Vocabulary Mappings, e.g., OWL, RDFS, RIF, R2R </td><td><code>mapping/<i><format></i></code> </td><td> If the data set provides vocabulary mappings to other vocabularies (<code>owl:equivalentClass</code>, <code>owl:equivalentProperty</code>, <code>rdfs:subClassOf</code>, and/or <code>rdfs:subPropertyOf</code> links), provide a link to the mapping file in the <em>Downloads & Resources</em> section, using the following format: <em>mapping/<format></em>. Replace <em><format></em> with the mapping/rule language used, like R2R or RIF.</td></tr></table> <h5>CKAN Basic Information Fields: Tags</h5> <p>Please use the following tags to provide meta-information about the data set. </p><p>Please list the vocabularies used by the data set so that the community can get an overview of which vocabularies are commonly used on the Web of Linked Data. </p><p>Linked Data published on the Web should be as <a href="http://www.w3.org/2001/tag/doc/selfDescribingDocuments.html" class="external text" title="http://www.w3.org/2001/tag/doc/selfDescribingDocuments.html">self-describing</a> as possible in order to make it easier for clients to understand and use the data. Important aspects of self-descriptiveness are making vocabulary terms dereferenceable according to the best practices described in <a href="http://www.w3.org/TR/swbp-vocab-pub/" class="external text" title="http://www.w3.org/TR/swbp-vocab-pub/">Publishing RDF Vocabularies</a>, using terms from common vocabularies and providing vocabulary mappings for proprietary vocabulary terms. In order to allow the community to get an overview which data sets implement these best practices, please tag your data set accordingly. </p> <table> <tr> <td><b>Tag</b> </td><td><b>Purpose</b> </td></tr> <tr> <td><code>format-<i><prefix></i></code> </td><td>A <a href="http://esw.w3.org/TaskForces/CommunityProjects/LinkingOpenData/CommonVocabularies" class="external text" title="http://esw.w3.org/TaskForces/CommunityProjects/LinkingOpenData/CommonVocabularies">vocabulary</a> used by the data set, e.g., <code>format-skos</code>, <code>format-dc</code>, <code>format-foaf</code> </td></tr> <tr> <td><code>no-proprietary-vocab</code> </td><td>Indicates that your data set does not use a proprietary vocabulary (defined within your top-level domain). </td></tr> <tr> <td><code>deref-vocab</code> <p><code>no-deref-vocab</code> </p> </td><td>Indicates whether the proprietary vocabulary terms used by your data set (the ones that are defined within your top-level domain) are dereferenceable according to the best practices for <a href="http://www.w3.org/TR/swbp-vocab-pub/" class="external text" title="http://www.w3.org/TR/swbp-vocab-pub/">Publishing RDF Vocabularies</a> </td></tr> <tr> <td><code>vocab-mappings</code> <p><code>no-vocab-mappings</code> </p> </td><td>Indicates whether mappings for proprietary vocabulary terms are provided (by setting <code>owl:equivalentClass</code>, <code>owl:equivalentProperty</code>, <code>rdfs:subClassOf</code>, and/or <code>rdfs:subPropertyOf</code> links, or publish mapping expressed as RIF rules or using the R2R Mapping Language). </td></tr> <tr> <td><code>provenance-metadata</code> <p><code>no-provenance-metadata</code> </p> </td><td>Indicates whether the data set provides provenance meta-information (creator of the data set, creation date, maybe creation method) as document meta-information or via a voiD description. For instance, using the <code>dc:creator</code> or <code>dc:date</code> properties. </td></tr> <tr> <td><code>license-metadata</code> <p><code>no-license-metadata</code> </p> </td><td>Indicates whether the data set provides licensing meta-information as document meta-information or via a voiD description. For instance, using the <code>dc:rights</code> property. </td></tr> <tr> <td><code>published-by-producer</code> <p><code>published-by-third-party</code> </p> </td><td>Indicates whether the data set is published by the original data producer or a third party. </td></tr> <tr> <td><code>limited-sparql-endpoint</code> </td><td>Indicates whether the SPARQL endpoint is not serving the whole data set. </td></tr> <tr> <td><code>lodcloud.nolinks</code> </td><td>Data set has no external RDF links to other datasets. </td></tr> <tr> <td><code>lodcloud.unconnected</code> </td><td>Data set has no external RDF links to or from other datasets. </td></tr> <tr> <td><code>lodcloud.needsinfo</code> </td><td>The data provider or data set homepage do not provide mininum information (and information can't be determined from SPARQL endpoint or downloads). </td></tr> <tr> <td><code>lodcloud.needsfixing</code> </td><td>The dataset is currently broken. Provide details in the Notes. </td></tr></table> <h4><a name="level4"/>Level 4 (reviewed and added to lodcloud group) </h4> <p>The data set has been reviewed and added to the lodcloud group.</p> <p>Please check it still for missing information and update those if needed.</p> </div> </BODY></HTML>