ntology@majordomo.ieee.org</A></LI>
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<PRE>

Roberto,
   This sounds interesting and there's very little analytical (as opposed 
to anecdotal) work on measuring the utility of ontologies.  If you'll 
forgive a self-reference, I think that the paper below is relevant.  I 
worked on a project where one group that was familiar with Cyc and one that 
wasn't both tried to solve the same knowledg