[sc34wg3] SWBPG - N-ary Relations Draft

Bernard Vatant sc34wg3@isotopicmaps.org
Wed, 4 Aug 2004 19:14:17 +0200

Dear TopicMap'ers

Please find below a link to a draft document from W3C Semantic Web Best Practices and
Deployment Working Group,
dealing with representation of n-ary relations in Semantic Web languages.



"In Semantic Web languages, such as RDF and OWL, a property is a binary relation; that is,
it links two individuals or an individual and a value. How do we represent relations among
more than two individuals? How do we represent properties of a relation, such as our
certainty about it, severity or strength of a relation, relevance of a relation, and so
on? The document presents ontology patterns for representing n-ary relations and discusses
what users must consider when choosing these patterns."

I've been asked by editors of this document to propose a short annex dealing with
representation of n-ary relations in Topic Maps. The draft for this annex is at

Please send remarks/comments about those two documents, to public-swbp-wg@w3.org

Bernard Vatant
Senior Consultant
Knowledge Engineering
Mondeca - www.mondeca.com