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Representation of aggregation and composition relationships #27

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jechterhoff opened this issue Feb 17, 2016 · 3 comments
Closed

Representation of aggregation and composition relationships #27

jechterhoff opened this issue Feb 17, 2016 · 3 comments

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@jechterhoff
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Description

ISO 19150-2 specifies an approach to represent UML aggregation and composition relationships in RDF. There, a UML association role that is playing the parts of an aggregation or composition association is represented in RDF via an annotation property (iso19150-2:aggregationType with a value of “partOfSharedAggregation” or “partOfCompositeAggregation”).

We believe that the distinction of aggregation and composition adds no value when publishing RDF data, especially when considering the open world assumption.

@DieterDePaepe
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Additionally, the URIs for the ISO19150-2 terms result in a 404.

@cportele
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@DieterDePaepe Indeed, I have created an issue in the repository where the ISO/TC 211 ontologies are maintained: ISO-TC211/GOM#4

@jechterhoff I noticed that Jean has changed the 19150-2 base URI three months ago... It now is http://def.isotc211.org/iso19150/-2/2012/base. This raises the question how stable/reliable that ontology is.

@jechterhoff
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The encoding rule defined in the guidelines does not convert aggregation and composition.

The base URI of ISO 19150-2 has been fixed (though it's still unresolvable).

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