- From: Bernhard Schandl <bernhard.schandl@univie.ac.at>
- Date: Thu, 25 Jun 2009 13:49:49 +0200
- To: Toby Inkster <tai@g5n.co.uk>
- Cc: public-lod@w3.org, public-semweb-ui@w3.org
>> However many "newbies" to RDF and ontologies are confused by this, >> because the triple >> >> foaf:Agent foaf:holdsAccount foaf:OnlineAccount . >> >> is actually not contained in the ontology. > > What needs to be communicated is that: > > [ a foaf:Agent ] foaf:holdsAccount [ a foaf:OnlineAccount ] . > > instead. Those triples are not actually in the ontology itself, but > will > be found (or at least implied) in any instance data that makes use of > the foaf:holdsAccount property. Certainly true, although this approach mixes up ontology and instance level, which might also lead to confusion. (Remember, I'm talking about people who have never heard of those things ...) > Something like this might be a nice visualisation: > > http://buzzword.org.uk/2009/domain-range-illustration.png It would be even better to flip it so that the ontology level is on top of the instance level, so to be in line with MOF. Best, Bernhard
Received on Thursday, 25 June 2009 11:50:42 UTC