A public page containing various DAML briefings is now available here.
Initial discussion centered on Jeff Heflin's comments:
UnambiguousPropertycan only be used for abstract properties because it effectively involves an inverse property that only exists for instances. Unfortunately, this restriction limits the utility of
UnambiguousProperty. ACTION (Ian): update the daml+oil.daml example for
UnambiguousPropertyto use instances.
sameIndividualAs(a subproperty of
equivalentTo) for relating instances of potentially different classes (e.g. Professor and Program Manager). It will also support
differentIndividualFrom. ACTION (Ian, Peter): add these to the current specification.
There was consensus that we need more documentation for DAML+OIL, including more examples for concrete data types, explanations of restrictions, design rationale, serious drawbacks, etc. Jim Hendler and Dan Brickley (second hand) noted that we're leading the curve in some use of RDF. Even if (as expected), someone from the Joint Committee serves on the RDF Core WG and/or the expected Web Ontology WG, this provides extra motivation for documentating our decisions. Possible new documents include: introduction, FAQ, rationale, etc. separate from current reference. ACTION: Frank volunteered to draft a new introduction.
RESOLVED: In view of the additions and action items, we will wait until after next week's telecon to release DAML+OIL (March 2001).
We'll plan to continue discussions from last week on what the Joint Committee should focus on next. ACTION (everyone): send new suggestions to Mike, who will collate for next week's agenda.
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