- From: Bernard Vatant <bernard.vatant@mondeca.com>
- Date: Tue, 7 Jun 2011 09:44:48 +0200
- To: Michael Hausenblas <michael.hausenblas@deri.org>
- Cc: Linked Data community <public-lod@w3.org>
- Message-ID: <BANLkTimfVte3rtf3goFDFJUNWg7U4OQLXQ@mail.gmail.com>
Hi all Something I don't understand. If I read well all savvy discussions so far, publishers behind http://schema.org URIs are unlikely to ever provide any RDF description, so why are those URIs declared as identifiers of RDFS classes in the http://schema.rdfs.org/all.rdf. For all I can see, http://schema.org/Person is the URI of an information resource, not of a class. So I would rather have expected mirroring of the schema.org URIs by schema.rdfs.org URIs, the later fully dereferencable proper RDFS classes expliciting the semantics of the former, while keeping the reference to the source in some dcterms:source element. Example, instead of ... <rdf:Description rdf:about="http://schema.org/Person"> <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/> <rdfs:label xml:lang="en">Person</rdfs:label> <rdfs:comment xml:lang="en">A person (alive, dead, undead, or fictional).</ rdfs:comment> <rdfs:subClassOf rdf:resource="http://schema.org/Thing"/> <rdfs:isDefinedBy rdf:resource="http://schema.org/Person"/> </rdf:Description> where I see a clear abuse of rdfs:isDefinedBy, since if you dereference the said URI, you don't find any explicit RDF definition ... I would rather have the following <rdf:Description rdf:about="http://schema.rdfs.org/Person"> <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/> <rdfs:label xml:lang="en">Person</rdfs:label> <rdfs:comment xml:lang="en">A person (alive, dead, undead, or fictional).</ rdfs:comment> <rdfs:subClassOf rdf:resource="http://schema.rdfs.org/Thing"/> <dcterms:source rdf:resource="http://schema.org/Person"/> </rdf:Description> To the latter declaration, one could safely add statements like schema.rdfs:Person rdfs:subClassOf foaf:Person etc Or do I miss the point? Bernard 2011/6/3 Michael Hausenblas <michael.hausenblas@deri.org> > > http://schema.rdfs.org > > ... is now available - we're sorry for the delay ;) > > Cheers, > Michael > -- > Dr. Michael Hausenblas, Research Fellow > LiDRC - Linked Data Research Centre > DERI - Digital Enterprise Research Institute > NUIG - National University of Ireland, Galway > Ireland, Europe > Tel. +353 91 495730 > http://linkeddata.deri.ie/ > http://sw-app.org/about.html > > > -- Bernard Vatant Senior Consultant Vocabulary & Data Integration Tel: +33 (0) 971 488 459 Mail: bernard.vatant@mondeca.com ---------------------------------------------------- Mondeca 3, cité Nollez 75018 Paris France Web: http://www.mondeca.com Blog: http://mondeca.wordpress.com ----------------------------------------------------
Received on Tuesday, 7 June 2011 07:45:17 UTC