PROV-ISSUE-179 (TLebo): defaults to prov:steps="n" causes issue in PROV-O [prov-dm] http://www.w3.org/2011/prov/track/issues/179 Raised by: Timothy Lebo On product: prov-dm Imposing a "default" value for prov:steps will cause issues in PROV-O, which embraces the open world. >From [1]: "It is optional to include the attribute prov:steps in an imprecise-n derivation record. It defaults to prov:steps="n"." An OWL axiom such as "imprecise-n derivation records must have values of prov:step that are integers greater than 1" can be done, and if an instance of Derivation is typed to "imprecise-n derivation record", then one knows that it has more than one step -- even when no prov:step has been asserted. If this OWL approach is taken, would we be violating the DM's "It defaults to prov:steps="n"."? Thanks, Tim [1] http://dvcs.w3.org/hg/prov/raw-file/tip/model/ProvenanceModel.html#Derivation-RelationReceived on Friday, 2 December 2011 17:29:00 UTC
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