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Uche Ogbuji wrote:
In fact, one way to look at DAML+OIL is as the business
rules for the Semantic Web, yet it's much more flexible
than most business-rules-languages in common use.
Most of DAML+OIL's power comes from primitives for
expressing classifications, as the race boards example
illustrates. DAML+OIL provides a toolbox of class
expressions, which bring the power of mathematical logic
and set theory to the tricky and important task of
mapping ontologies through classifications.
This hits the nail on the head.
Once something is properly classified, you can safely
decide what you want to do with it. One of the important
features of DAML+OIL => OWL is that ontologies may be
decentralized and distributed. Just as the current Web
allows anyone with an internet account to become a
publisher, the semantic web will allow anyone to publish
his or her classification. Once you realize the
importance of classifications, this becomes quite