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		<id>https://protegewiki.stanford.edu/index.php?title=Engineering_ontologies&amp;diff=9032</id>
		<title>Engineering ontologies</title>
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				<updated>2010-09-28T10:00:37Z</updated>
		
		<summary type="html">&lt;p&gt;C010ss: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;= Engineering ontologies = &lt;br /&gt;
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The engineering ontologies are a set of small and reusable ontologies for representing engineering artifacts.&lt;br /&gt;
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* '''The Components ontology''' – defines the part-whole relationship and is used to represent the decomposition structure of systems&lt;br /&gt;
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* '''The Connections ontology''' – defines the topology of a system and describes how components of a system are connected to each other&lt;br /&gt;
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* '''The Requirements ontology''' – used for representing requirements and their various relationships, as well as the relationships between requirements and systems&lt;br /&gt;
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* '''The Constraints ontology''' – used for defining constraints on different model elements, for instance, constraints on model parameters expressed as mathematical relationships&lt;br /&gt;
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The ontologies are described in [http://opus.kobv.de/tuberlin/volltexte/2006/1437/pdf/tudorache_tania.pdf this document] in Chapter 4. Use cases for the ontologies are described in Chapter 6.&lt;br /&gt;
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The engineering ontologies have been developed using the Protege frames formalism. Protege can be downloaded from the [http://protege.stanford.edu Protege website].&lt;br /&gt;
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'''Download''': [http://protegewiki.stanford.edu/images/9/9f/EngineeringOntologies.zip EngineeringOntologies.zip] - The archive contains a small example project (EngineTransmission_3.pprj) that uses the engineering ontologies.&lt;br /&gt;
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Author: Tania Tudorache &amp;lt;tudorache _at_ stanford.edu&amp;gt;&lt;br /&gt;
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Date: 2008.06.04&lt;br /&gt;
[http://www.nexus-insurance.net/ Attorney liability insurance]&lt;/div&gt;</summary>
		<author><name>C010ss</name></author>	</entry>

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