- From: Jim Hendler <hendler@cs.umd.edu>
- Date: Thu, 24 Apr 2003 21:50:48 -0400
- To: Mike Dean <mdean@bbn.com>, Dan Brickley <danbri@w3.org>
- Cc: Bernard Vatant <bernard.vatant@mondeca.com>, www-rdf-logic@w3.org, Maria Teresa Pazienza <pazienza@info.uniroma2.it>, Fabio Zanzotto <zanzotto@info.uniroma2.it>, Patrizia Paggio <patrizia@cst.dk>
At 16:22 -0700 4/24/03, Mike Dean wrote: >> But things can have multiple names; > >Yes, motivating in part daml:sameIndividualAs, >daml:sameClassAs, etc. > >> we don't make unique name assumption, do we? > >No. > > Mike SHOE's ontologies were created long before DAML, OIL, DAML+OIL or OWL existed (in fact, SHOE predates RDF as well) -- when the SHOE ontologies were ported to DAML, a mapper was used - and thus the potential name conflict. Most of the tools we've been building at Maryland are namespace aware, so as Mike says, we just don't confuse these things (danbri - they CAN be the same because we don't make the unique name assumption, but that doesn't mean they are the same just because the URIREFs have something in common). For what it is worth, SHOE used "Entity" in much the way DAML uses daml:thing; and used "thing" to essentially mean some named entity. SHOE didn't have anything corresponding to "daml:nothing" as far as I can recall. Dealing with this in a non-name-space aware system would require doing some sort of fix -- but then, using RDF/DAML/OWL without being aware of namespaces intoduces many other problems -JH -- Professor James Hendler hendler@cs.umd.edu Director, Semantic Web and Agent Technologies 301-405-2696 Maryland Information and Network Dynamics Lab. 301-405-6707 (Fax) Univ of Maryland, College Park, MD 20742 240-731-3822 (Cell) http://www.cs.umd.edu/users/hendler
Received on Thursday, 24 April 2003 21:51:05 UTC