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<title>Nepomuk Annotation Ontology (NAO)</title>

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        <h1 id="nepomuk-annotation-ontology-nao">Nepomuk Annotation Ontology (NAO)</h1>
<pre><code class="language-turtle">@prefix nao: &lt;http://tracker.api.gnome.org/ontology/v3/nao#&gt;
</code></pre>
<h2 id="classes">
<a name="nao.classes"></a>Classes</h2>
<p><a href="nao-ontology.html#nao:Tag">Tag</a></p>
<h2 id="additional-properties">
<a name="nao.extra_properties"></a>Additional Properties</h2>
<p><a href="nao-ontology.html#nao:deprecated">deprecated</a>, <a href="nao-ontology.html#nao:hasTag">hasTag</a>, <a href="nao-ontology.html#nao:identifier">identifier</a>, <a href="nao-ontology.html#nao:isRelated">isRelated</a>, <a href="nao-ontology.html#nao:lastModified">lastModified</a>, <a href="nao-ontology.html#nao:numericRating">numericRating</a></p>
<h2 id="class-details">
<a name="nao-classes"></a>Class Details</h2>
<h3 id="tag">
<a name="nao:Tag"></a>Tag</h3>
<h5 id="description">Description</h5>
<p>Represents a generic tag</p>
<p><strong>Note:</strong> <a href="nrl-ontology.html#nrl:notify"><img src="images/icon-notify.svg" alt="Notify icon" title="Notify icon" id="notify-icon"></a>This class emits notifications about changes, and can be monitored using <code>TrackerNotifier</code>.</p>
<h4 id="class-hierarchy">
<a name="nao:Tag.hierarchy"></a>Class hierarchy</h4>
<pre><code>rdfs:Resource 
╰── nao:Tag 
</code></pre>
<h4 id="predefined-instances">
<a name="nao:Tag.predefined-instances"></a>Predefined instances</h4>
<p>nao:Tag has the following predefined instances:</p>
<ul>
<li>nao:predefined-tag-favorite</li>
</ul>
<h4 id="properties">
<a name="nao:Tag.properties"></a>Properties</h4>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Notes</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td> <a name="nao:description"></a>description</td>
<td> <a href="xsd-ontology.html#xsd:string">string</a>
</td>
<td> <a href="rdfs-ontology.html#rdfs:comment"><img src="images/icon-superproperty.svg" alt="This property extends rdfs:comment" title="This property extends rdfs:comment" id="this-property-extends-rdfscomment"></a><a href="nrl-ontology.html#nrl:fulltextIndexed"><img src="images/icon-fulltextindexed.svg" alt="This property is full-text-indexed, and can be looked up through fts:match" title="This property is full-text-indexed, and can be looked up through `fts:match`" id="this-property-is-fulltextindexed-and-can-be-looked-up-through-ftsmatch"></a>
</td>
<td> In the context of the social semantic desktop the textual annotation provided via rdfs:comment is meant for technical users, the textual annotation here is aimed at average users and is meant to be used to define custom descriptions of resources on the desktop</td>
</tr>
<tr>
<td> <a name="nao:prefLabel"></a>prefLabel</td>
<td> <a href="xsd-ontology.html#xsd:string">string</a>
</td>
<td> <a href="nrl-ontology.html#nrl:fulltextIndexed"><img src="images/icon-fulltextindexed.svg" alt="This property is full-text-indexed, and can be looked up through fts:match" title="This property is full-text-indexed, and can be looked up through `fts:match`" id="this-property-is-fulltextindexed-and-can-be-looked-up-through-ftsmatch1"></a>
</td>
<td> A preferred label for a resource</td>
</tr>
<tr>
<td> <a name="tracker:isDefaultTag"></a>isDefaultTag</td>
<td> <a href="xsd-ontology.html#xsd:boolean">boolean</a>
</td>
<td></td>
<td></td>
</tr>
<tr>
<td> <a name="tracker:tagRelatedTo"></a>tagRelatedTo</td>
<td> <a href="rdfs-ontology.html#rdfs:Class">Class</a>
</td>
<td> <a href="nrl-ontology.html#nrl:maxCardinality"><img src="images/icon-multivalue.svg" alt="This property can have multiple values." title="This property can have multiple values." id="this-property-can-have-multiple-values"></a>
</td>
<td></td>
</tr>
</tbody>
</table>
<h2 id="property-details">
<a name="nao-extra-properties"></a>Property Details</h2>
<h3 id="additional-properties-for-rdfsresource">
<a name="nao.rdfs:Resource"></a>Additional properties for rdfs:Resource</h3>
<h4 id="description1">Description</h4>
<p>Properties this ontology defines which can describe rdfs:Resource resources.</p>
<h4 id="properties1">
<a name="nao.rdfs:Resource.properties"></a>Properties</h4>
<table>
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Notes</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td> <a name="nao:deprecated"></a>deprecated</td>
<td> <a href="xsd-ontology.html#xsd:boolean">boolean</a>
</td>
<td></td>
<td> If this property is assigned, the subject class, property, or resource, is deprecated and should not be used in production systems any longer. It may be removed without further notice.</td>
</tr>
<tr>
<td> <a name="nao:hasTag"></a>hasTag</td>
<td> <a href="rdfs-ontology.html#rdfs:Resource">Resource</a>
</td>
<td> <a href="nrl-ontology.html#nrl:maxCardinality"><img src="images/icon-multivalue.svg" alt="This property can have multiple values." title="This property can have multiple values." id="this-property-can-have-multiple-values1"></a>
</td>
<td> Defines an existing tag for a resource</td>
</tr>
<tr>
<td> <a name="nao:identifier"></a>identifier</td>
<td> <a href="xsd-ontology.html#xsd:string">string</a>
</td>
<td></td>
<td> Defines a generic identifier for a resource</td>
</tr>
<tr>
<td> <a name="nao:isRelated"></a>isRelated</td>
<td> <a href="rdfs-ontology.html#rdfs:Resource">Resource</a>
</td>
<td> <a href="nrl-ontology.html#nrl:maxCardinality"><img src="images/icon-multivalue.svg" alt="This property can have multiple values." title="This property can have multiple values." id="this-property-can-have-multiple-values2"></a>
</td>
<td> This property defines a symmetric relation between any two resources. In order for this property to be used legally, the relationship must be symmetric.</td>
</tr>
<tr>
<td> <a name="nao:lastModified"></a>lastModified</td>
<td> <a href="xsd-ontology.html#xsd:dateTime">dateTime</a>
</td>
<td> <a href="dc-ontology.html#dc:date"><img src="images/icon-superproperty.svg" alt="This property extends dc:date" title="This property extends dc:date" id="this-property-extends-dcdate"></a>
</td>
<td> last modification date</td>
</tr>
<tr>
<td> <a name="nao:numericRating"></a>numericRating</td>
<td> <a href="xsd-ontology.html#xsd:double">double</a>
</td>
<td></td>
<td> Annotation for a resource in the form of a numeric rating (float value), allowed values are between 1 and 10 whereas 0 is interpreted as not set</td>
</tr>
</tbody>
</table>
<h2 id="credits-and-copyright">Credits and Copyright</h2>
<p>Authors:</p>
<ul>
<li>Ludger van Elst, DFKI, &lt;elst@dfki.uni-kl.de&gt;</li>
<li>Michael Sintek, DFKI, &lt;michael.sintek@dfki.de&gt;</li>
<li>Siegfried Handschuh, DERI/NUIG, &lt;siegfried.handschuh@deri.org&gt;</li>
<li>Simon Scerri, DERI/NUIG, &lt;simon.scerri@deri.org&gt;</li>
</ul>
<p>Editors:</p>
<ul>
<li>Simon Scerri, DERI/NUIG, &lt;simon.scerri@deri.org&gt;</li>
<li>Tracker developers (translation into turtle)</li>
</ul>
<p>Contributors:</p>
<ul>
<li>Antoni Mylka, DFKI, &lt;antoni.mylka@dfki.de&gt;</li>
<li>Julien Gaugaz, L3S, &lt;gaugaz@l3s.de&gt;</li>
<li>Knud Möller, DERI/NUIG, &lt;knud.moeller@deri.org&gt;</li>
<li>Leo Sauermann, DFKI, &lt;leo.sauermann@dfki.de&gt;</li>
<li>Max Völkel, FZI, &lt;voelkel@fzi.de&gt;</li>
<li>Sebastian Trüg, EDGE-IT, &lt;strueg@mandriva.com&gt;</li>
</ul>
<p>Upstream: <a href="http://www.semanticdesktop.org/ontologies/nao/">Upstream version</a></p>
<p>ChangeLog: <a href="hhttps://gitlab.gnome.org/GNOME/tracker/-/commits/master/src/ontologies/31-nao.ontology">Tracker changes</a></p>
<p>Copyright:
© 2007 <ulink url="http://nepomuk.semanticdesktop.org">NEPOMUK Consortium</ulink>®. This work is made available under the terms of NEPOMUK <ulink url="http://www.semanticdesktop.org/ontologies/nfo/LICENSE.txt">software license</ulink></p>

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