- From: Provenance Working Group Issue Tracker <sysbot+tracker@w3.org>
- Date: Fri, 02 Dec 2011 19:28:59 +0000
- To: public-prov-wg@w3.org
PROV-ISSUE-180 (TLebo): defaults to prov:steps="n" causes issue in PROV-O [prov-dm] http://www.w3.org/2011/prov/track/issues/180 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-Relation
Received on Friday, 2 December 2011 19:29:04 UTC