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inspire-eu-rdf / inspire-rdf-guidelines

INSPIRE data in RDF
http://inspire-eu-rdf.github.io/inspire-rdf-guidelines/
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Representation of aggregation and composition relationships #27

Closed jechterhoff closed 7 years ago

jechterhoff commented 8 years ago

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 commented 7 years ago

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

cportele commented 7 years ago

@DieterDePaepe Indeed, I have created an issue in the repository where the ISO/TC 211 ontologies are maintained: https://github.com/ISO-TC211/GOM/issues/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 commented 7 years ago

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).