Last modified 9 years ago Last modified on 02/09/09 11:22:36

View Definition Language (VDL)

General Problem:

We require a language for defining custom views over reference ontologies expressed in semantic web languages. Although most such ontologies are represented in some form of OWL, we assume only that they are in RDF. For a defined view, we also require mechanisms for materializing a view based on its definition. Additionally, we would like to be able to resolve queries against an ontology view without first materializing it, but rather by composing incoming queries with the view definition in order to form queries over the original reference ontologies. Ideally the query and view languages should be the same, enabling chains of views defined as queries over other views.

View definition requirements

Survey of existing semantic web query languages

Special considerations

  • Some ontologies (i.e. OWL DL) express relations between classes as property restrictions (unlike the FMA or FMA_Radlex).


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