- From: Luc Moreau <l.moreau@ecs.soton.ac.uk>
- Date: Tue, 13 Mar 2012 11:19:24 +0000
- To: public-prov-wg@w3.org
Hi Stian, That's a good suggestion. Can you check my previous email on how to handle optional agent in association. Is this a suitable way of hanlding this issue from your viewpoint? Regards, Luc On 13/03/2012 11:05, Provenance Working Group Issue Tracker wrote: > PROV-ISSUE-311 (clarify-optionals): Clarify optional arguments in DM [prov-dm] > > http://www.w3.org/2011/prov/track/issues/311 > > Raised by: Stian Soiland-Reyes > On product: prov-dm > > There seems to be some confusion over any of the 'optional' arguments in > PROV-DM/PROV-N. > > It is unclear if this means that the argument is *implied* (ie. > existential quantification/bnodes in OWL/RDF) or not applicable/not present (NIL). > > It might be good to go through all of the optionals in PROV-DM and make sure they make that clear. > > For instance: > >> Generation, written wasGeneratedBy(id,e,a,t,attrs) in PROV-N, has the following components: >> id: an optional identifier for a generation; >> entity: an identifier for a created entity; >> activity: an optional identifier for the activity that creates the entity; >> time: an optional "generation time", the time at which the entity was completely created; >> attributes: an optional set of attribute-value pairs that describes the modalities of generation of this entity by this activity. >> > Change to: > > > >> Generation, written wasGeneratedBy(id,e,a,t,attrs) in PROV-N, has the following components: >> id: an optional identifier for a generation, if unspecified the identifier is not known; >> entity: an identifier for a created entity; >> activity: an optional identifier for the activity that creates the entity, if unspecified activity is still implied, but unknown; >> time: an optional "generation time", the time at which the entity was completely created, if unspecified the time is unknown or not applicable; >> attributes: an optional set of attribute-value pairs that describes the modalities of generation of this entity by this activity, if unspecified an empty set is implied. >> > > > >
Received on Tuesday, 13 March 2012 11:20:03 UTC