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Ontologies: OWL
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This is also a stable specification since 2004
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Separate layers have been defined, balancing expressibility vs.
implementability (OWL-Lite, OWL-DL, OWL-Full)
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Looking at the tool list on W3C’s wiki again:
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- a number programming environments include OWL reasoners
- there are also stand-alone reasoners (downloadable or on the
Web)
- ontology editors come to the fore
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OWL-DL and OWL-Lite relies on Description Logic, ie, can use a
large body of accumulated research knowledge