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LANG/GUIDE: XML.com article on DAML [sic]

From: Jim Hendler <hendler@cs.umd.edu>
Date: Thu, 21 Mar 2002 21:52:16 -0500
Message-Id: <p0510141cb8c04a4adebf@[]>
To: webont <www-webont-wg@w3.org>
I just saw the second DAML article by Roxane Ouellet and Uche Ogbuji 
which appeared recently on xml.com [1],  In an earlier article [2] 
they reviewed the basics of DAML, in this one they go into more 
expressive items, and they promise a third in which they will finish 
up, and also produce a table of the relationships between RDF, RDFS 
and DAML  (note - I sent Uche a note reminding him the langauge is he 
is discussing is called DAML+OIL)
  It is worth thinking about how he has presented these three articles 
-- the first one presents the main ideas - similar to the "OWL-light" 
constructs for much of it.  Second one includes the more complex 
constructs and gets into defined classes and restrictions
  THe mapping to our language-1 proposal is not perfect, but it is 
close.  I htink this is interesting for two reasons
  1) It produces some anecdotal evidence validating Frank et al's 
claim that the core part seems to be what people understand 
first/most easily
  2) It provides an expository mechanism we might try to follow - 
whether we choose to regard OWL-lite as a layer or as a set of idioms 
- which is to make it clear how the more complex/expressive language 
constructs build on the simpler ones by constructing more and more 
complex examples in the same domain.
p.s. I havem't gone through their examples carefully to make sure 
there are no errors in the DAML, but their "Super Sport Ontology" [3] 
is used for the examples and is a nice expository domain.

[1] http://www.xml.com/pub/a/2002/03/13/daml.html
[2] http://www.xml.com/pub/a/2002/01/30/daml1.html
[3] http://www.xml.com/2002/03/13/examples/SuperSports.daml
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)
AV Williams Building, Univ of Maryland		  College Park, MD 20742
Received on Thursday, 21 March 2002 21:52:18 UTC

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