- From: Christopher Welty <welty@us.ibm.com>
- Date: Thu, 13 Feb 2003 11:43:30 -0500
- To: Jim Hendler <hendler@cs.umd.edu>
- Cc: webont <www-webont-wg@w3.org>, www-webont-wg-request@w3.org
Jim,
I think it would be good to have another non-normative document or
appendix that discusses "how to migrate from RDFS" (or RDF?) to OWL". This
is not, IMHO, part of Guide, which is supposed to be a tutorial style
introduction to the language, nor do I really see it as part of any other
(current) document.
Jeremy made a start in a message after the f2f:
http://lists.w3.org/Archives/Public/www-webont-wg/2003Jan/0273.html
I think someone familiar with RDFS (not Mike or me) should take a stab at
expanding this into a short document.
-Chris
Dr. Christopher A. Welty, Knowledge Structures Group
IBM Watson Research Center, 19 Skyline Dr.
Hawthorne, NY 10532 USA
Voice: +1 914.784.7055, IBM T/L: 863.7055
Fax: +1 914.784.6912, Email: welty@us.ibm.com
Jim Hendler <hendler@cs.umd.edu>
Sent by: www-webont-wg-request@w3.org
02/12/2003 11:59 AM
To: webont <www-webont-wg@w3.org>
cc:
Subject: From our comments list
This comment, send to our public comments list talkin about Guide:
At 15:55 +0100 2/12/03, Ivan Herman wrote:
>
>Reviewing the OWL Guide version 1.0,
>http://www.w3.org/TR/2003/WD-owl-guide-20030210/:
>
>As a reader NOT participating in the working group (ie, not being part
>of all the intricate discussions), the current document is very
>confusing on the issue on how OWL and RDFS relate. The impression one
>gets when reading the document is that OWL picks bits and pieces of the
>RDFS document for its own purposes (rdfs:subClassOf, rdfs:label, etc),
>but deliberately ignores or deprecates, for example, rdfs:Property or
>rdfs:Class by introducing owl:Class, owl:ObjectProperty, and owl:Thing,
>etc. I presume there is a clear model on how these notions relate to one
>another, but I am afraid the current document creates real confusion to
>the community. Adding a separate chapter describing the 'onion model' of
>concentric possibilities offered by RDFS and the various OWL dialect
>would be beneficial.
>
>Ivan
reflects the confusion in our current layering and raises a point we
will have to handle -- I have sent him a reply pointing him at
overview and ref, and mentioning we are working on this -- I believe
we need to create a section for one of our documents, or that could
appear separately on our website pointed to by our documents, that
discusses this issue -- if we don't do it before LC, we can be sure
to get comments like this and have to address it before we move
further through the process
-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, 13 February 2003 11:44:12 UTC