- From: Richard Newman <rnewman@twinql.com>
- Date: Sat, 7 Feb 2009 16:47:00 -0800
- To: Jiri Prochazka <ojirio@gmail.com>
- Cc: Semantic Web at W3C <semantic-web@w3.org>
I should add something that I realize I did not cover: > However, we cannot do that in RDF as standardized. As a result, > hundreds of domain ontologies are doomed to do exactly what the tag > ontology does: reify a domain object and place annotations on it. Individual ontologies can reduce some duplication by 'lifting' some aspects: for example, the Tagging and Knowing classes in this discussion could both be subclasses of Event (the former likely being instantaneous, the latter having a duration). Event would be the domain of a "began" property, thus taking care of both f:beganKnowing and tag:taggedOn. This saves some duplication, but doesn't avoid the fact that almost every relationship would benefit in some way from the ability to be annotated: RDF still imposes the need to reify simple assertions like knowing and tagging. 2¢ more... -R
Received on Sunday, 8 February 2009 00:47:39 UTC