the Protege OWL tutorial will be updated "real soon now". We'll be doing OWL 1..1 (there wasn't any point updating before 1.1), but also including stuff about data type properties (which can now be reasoned over well) and some stuff about instances. finally, there's a whole lot of  Protege stuff to change....

I wouldn't, however, hold your breath. Perhaps it will be ready  early next year.

robert.At 18:45 27/10/2006, William Bug wrote:
This is a very important point.  Thanks, Phil.

As is spelled out in the wonderful ProtegeOWL Tutorial PDF (which would be wonderful to have updated a bit), leaning on the reasoner during early phases of ontology construction is very helpful, but ultimately once you have more "hardened" components, you can "save" the inferred graph and distribute that for the user community.

Cheers,
Bill

On Oct 27, 2006, at 3:54 AM, Phillip Lord wrote:





"Robert" == Robert Stevens < [EMAIL PROTECTED]> writes:

  Robert> There's another answer of using the reasoner by building
  Robert> your ontology to take advantage of its capabilities. the
  Robert> conceptual lego approach relies on the reasoner.



Incidentally, Robert's point reminded me of another thing you can do
without a reasoner.

You can use your reasoner to build your ontology, and then deploy it
without. One of the main reasons that people don't like DL reasoners s
the overhead that they add to architectures. I think that this is a
reasonable point but, in general, only at deployment time. When
building your ontology, it's not that much hassle to have a
reasoner -- my experience suggests it saves your more time than it
costs you.

Phil

Bill Bug
Senior Research Analyst/Ontological Engineer

Laboratory for Bioimaging  & Anatomical Informatics
www.neuroterrain.org
Department of Neurobiology & Anatomy
Drexel University College of Medicine
2900 Queen Lane
Philadelphia, PA    19129
215 991 8430 (ph)
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215 843 9367 (fax)


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