- From: Jim Hendler <hendler@cs.umd.edu>
- Date: Sun, 19 Oct 2003 20:40:43 -0400
- To: webont <www-webont-wg@w3.org>
WOWGers- We have been debugging some problems with ontologies created both by students in my research group, by some well-known researchers using OWL, and from some stuff we found in various places around the web. We have found a number of problems of various kinds, but one that seems to come up a lot is people using owl:subclassOf, owl:range, and owl:domain -- I'm not sure if we have a test that actually exposes these -- might be worth creating some to make it more obvious (i.e. simple test with 2 forms, one with rdfs:subclassOf and one with owl:subclassOf where the latter fails) -- the BBN owl validator doesn't catch this error (bug report has been filed) so a test may be valuable Might also be worth noting this for our forthcoming best practices document.. -JH p.s. Our issues list is clear, and our documents make it clear -- however, the problem is occuring in practice so we might want to make it easier for people to see it is an error -- 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 *** 240-277-3388 (Cell) http://www.cs.umd.edu/users/hendler *** NOTE CHANGED CELL NUMBER ***
Received on Sunday, 19 October 2003 20:41:30 UTC