Roles, Types and RDF

[jpadfield]

cidoc-crm.examples/models/imageexam/imageexam-triples.csv

Lines 21 to 24 in 4e04e9c

	ngo:00D-0002-0000 crm:P2.has type crm:E21.Person
	ngo:00D-0002-0000 crm:P2.has type aat:300025687
	ngo:00D-0002-0000 rdfs:label Example NG Staff Member@en
	aat:300025687 rdfs:label photographers@en

"Some people do not agree with" defining a "type of actor" - "recommended to use P14.1 in the role of" - but there are know issue with rdf.

P14.1 works as a property of a property of a specific triple rather than a property of a single entity.

At this time RDF triples are not able to model this. Thus in a real use case, in order to keep the models simpler, and thus easier to program against a tagging a person with a simple type is used instead. This loses context of the semantic statement but can actually be done.

RDF is being developed and the next version is expected to allow this more complex type of relationship.

From comments originally made by @natuk