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  <title>Nepomuk Sharing Ontology (NSO)</title>

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<h1>Nepomuk Sharing Ontology (NSO)</h1>

<h2>OSCAF Recommendation 8.11.2009</h2>

<dl>
  <dt>Latest Version:</dt>

  <dd><a href="http://www.semanticdesktop.org/ontologies/nso">http://www.semanticdesktop.org/ontologies/nso</a>
  </dd>

  <dt>This Version:</dt>

  <dd><a href="http://www.semanticdesktop.org/ontologies/2009/11/08/nso">http://www.semanticdesktop.org/ontologies/2009/11/08/nso</a>
  <br/>This file refers to the Revision 1 of NSO. Minor changes may be implemented in future revisions. 
       With each new revision, the documentation and all serializations of the ontology will be updated.</dd>
  
  <!--dt>Previous Version:</dt>
  <dd><a href="http://www.semanticdesktop.org/ontologies/2009/11/08/nso">http://www.semanticdesktop.org/ontologies/2009/11/08/nso</a-->

  <dt>Authors:</dt>
  <dd>Leo Sauermann, DFKI, <a href="mailto:leo.sauermann@dfki.de">leo.sauermann@dfki.de</a></dd>
  <dd>Iridian Kiiskinen  <a href="mailto:ext-iridian.kiiskinen@nokia.com">ext-iridian.kiiskinen@nokia.com</a></dd>
  
  <dt>Contributors:</dt>
  <dd>Sebastian Tr&uuml;g, <a href="mailto:trueg@kde.org">trueg@kde.org</a></dd>
  <dd>Attendees of the <a href="http://techbase.kde.org/Projects/Nepomuk/OpenSocialSemanticDesktopWorkshop2009">OpenSocialSemanticDesktopWorkshop2009</a></dd>

  <dt id="ontology">Ontology:</dt>
  <dd>XML/RDFS Serialization: <a href="http://www.semanticdesktop.org/ontologies/2009/11/08/nso/nso_data.rdfs">NSO (Data Graph Only)</a></dd>
  <dd>XML/RDFS Serialization: <a href="http://www.semanticdesktop.org/ontologies/2009/11/08/nso/nso_metadata.rdfs">NSO (Metadata Graph Only)</a></dd>
  <dd>TriG Serialization: <a href="http://www.semanticdesktop.org/ontologies/2009/11/08/nso/nso.trig">NSO (Graph Set)</a></dd>
</dl>

</div>

<hr />
<p class="copyright"> Copyright &copy; 2009 the authors<sup>&reg;</sup>
The ontologies are made available under the terms of NEPOMUK <a href="LICENSE.txt">software license</a>
</p>
<hr />

<h2 id="abstract">Abstract</h2>
<p>
  The Nepomuk Sharing Ontology is used to express that information elements or pimo things are shared with contacts.
  Sharing is possible both for groups and for individual contacts.
  The ontology is intended to by used on a user's computer to indicate which local resources have been shared with whom.
  Services should interpret the ontology to push changes of shared things to the contacts.
</p>

<h2 id="status">Status of this document</h2>
<p>
	This section describes the status of this document at the time of its publication. 
	The form used for this status message and document is inspired by the W3C process. 
</p>
<p>
	This document describes an <a href="http://www.oscaf.org">OSCAF ontology recommendation</a> describing the Nepomuk Sharing Ontology (NSO).
	It was created at the <a href="http://techbase.kde.org/Projects/Nepomuk/OpenSocialSemanticDesktopWorkshop2009">OpenSocialSemanticDesktopWorkshop2009</a> and is now maintained by OSCAF members.
	The listed editor is responsible to bring in feedback from the other authors, contributors,
	and the community at large.
	Other documents may supersede this document. 
</p>
<p>
	This recommendation is <a href="#ontology">accompanied by a RDFS/NRL ontology</a>, which is the authorative formal 
	description of the ontology.</b>
</p>
<h2 id="example">Example</h2>
<p>
	If a local file should be shared with a contact, it can be done like the following
</p>
<pre>
# N3 example
@prefix rdfs:    &lt;http://www.w3.org/2000/01/rdf-schema#&gt; .
@prefix rdf:     &lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#&gt; .
@prefix nso:     &lt;http://www.semanticdesktop.org/ontologies/2009/11/08/nso#&gt; .
@prefix nfo:     &lt;http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#&gt; .
@prefix nco:     &lt;http://www.semanticdesktop.org/ontologies/2007/03/22/nco#&gt; .

&lt;file:///home/blah.odp&gt; a nfo:Presentation.
&lt;nepomuk://res/23234&gt; a nco:Contact.
&lt;nepomuk://res/46252&gt; a nco:Contact.
&lt;nepomuk://res/55555&gt; a nco:ContactGroup.
&lt;file:///home/blah.odp&gt; nso:sharedWithContact &lt;nepomuk://res/23234&gt;.
&lt;file:///home/blah.odp&gt; nso:sharedWithContact &lt;nepomuk://res/46252&gt;.
&lt;file:///home/blah.odp&gt; nso:sharedWithGroup &lt;nepomuk://res/55555&gt;.
</pre>