/[volute]/trunk/projects/theory/snapdm/doc/Ontology reference data.txt
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Contents of /trunk/projects/theory/snapdm/doc/Ontology reference data.txt

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Revision 186 - (show annotations)
Sat Apr 5 12:52:32 2008 UTC (13 years, 2 months ago) by gerard.lemson
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Updates to the UML.
Worked further on the <<ontologyterm>> stereotype.
Added a tag definition "ontology" to it, that can be given a URL to a SKOS .rdf document.
Maybe have to make this SKOS part more explicit.
Need to discuss with the semantics people.
1 Use of ontologies etc in the SNAP model
2 ---------------------------------------
3 In the UML model we introduce instance-s of Ontology.
5 These are assumed to refer to real ontologies, containing Term-s.
7 These instances are to be used by types in the model. Some of these have attributes
8 whose type is "anyURI" and in their documentation indicate which Ontology instance
9 they should be obtained from.
11 This needs more discussion.
12 We may want to introduce a stereotype on an attribute which indicates that
13 the attribute takes its value in an externally maintained ontology.
14 This should come with a feature on the same attribute to indicate which ontology
15 is used. I have done so by creating a "Tag Definition", "ontologyURI" on the <<ontologyterm>>
16 sterotype. So when assigning that stereotype to an attribute, one can give taht
17 tag a value corresponding to the URL of the ontology within which it takes a value.
19 The type of the attribute must be anyURI or string. The latter should refer to the
20 name of the term which we assume to be unique in the ontology. The anyURI would
21 indicate the globally unique URI of the term.

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