- From: Luc Moreau <l.moreau@ecs.soton.ac.uk>
- Date: Wed, 26 Sep 2012 14:24:31 +0100
- To: Paul Groth <p.t.groth@vu.nl>
- CC: "public-prov-wg@w3.org" <public-prov-wg@w3.org>
Hi Paul, I don't see this as a requirement for a prov:subactivityOf relation. Our response with dcterms:hasPart still holds. Luc On 26/09/2012 14:20, Paul Groth wrote: > Hi Luc, > > I get the response.... but there's a suggested modelling approach, > namely, break down the activity into two activity, suggests that then > you have subactivites..... Akkkk > > cheers > Paul > > On Tue, Sep 25, 2012 at 3:27 PM, Luc Moreau<l.moreau@ecs.soton.ac.uk> wrote: > >> Hi all, >> >> Find below a draft response to this issue, available on the wiki at: >> http://www.w3.org/2011/prov/wiki/ResponsesToPublicComments#ISSUE-521_.28Responsibility_Activity.29 >> >> Feedback appreciated, >> Regards, >> Luc >> >> ISSUE-521 (Responsibility Activity) >> >> Original email: >> http://lists.w3.org/Archives/Public/public-prov-wg/2012Sep/0111.html >> Tracker: http://www.w3.org/2011/prov/track/issues/521 >> Group Response >> >> PROV agents bear responsibility for activities taking place, entities being >> generated, and other agents. >> PROV agents MAY be entities or activities >> Given this, it is legal to write the following, in which the type of a2 and >> a1 is inferred to be agent. >> >> activity(a1) >> activity(a2) >> actedOnBehalfOf(a2,a1) >> >> The group has provided its answer to ISSUE-503 >> PROV associations are not temporal relations. Instead, prov-constraints >> define ordering constraints that are implied by associations. The agent in >> an association is expected to have some overlap with the activity. Likewise, >> for attribution, the agent exist before this entity was generated. >> If an application, it is necessary to express that an activity is associated >> with agent ag1 during interval (evt1-evt2) and then with agent ag2 during >> interval (evt2-evt3), the approach is to model this with two activities, one >> for the first interval, or one for the second interval. >> >> References: >> >> Type inference: >> http://www.w3.org/TR/2012/WD-prov-constraints-20120911/#typing >> Adopt plan response: >> http://www.w3.org/2011/prov/wiki/ResponsesToPublicComments#ISSUE-503_.28adopt_plan.29 >> Association ordering constraints: >> http://www.w3.org/TR/2012/WD-prov-constraints-20120911/#wasAssociatedWith-ordering_text >> >> Changes to the document: http://dvcs.w3.org/hg/prov/rev/e89828e2a81c >> Original author's acknowledgement: >> >> >> >> On 10/09/2012 09:48, Provenance Working Group Issue Tracker wrote: >> >> PROV-ISSUE-521: Data Model Section 5.3.3 [prov-dm] >> >> http://www.w3.org/2011/prov/track/issues/521 >> >> Raised by: Luc Moreau >> On product: prov-dm >> >> >> http://www.w3.org/2011/prov/wiki/LC_Feedback#Data_Model_Section_5.3.3 >> >> ISSUE-463 >> >> By definition, agents can be both entities and activities (section 2.1.3). >> Can activities be responsible for other activities, or can only entities be >> assigned responsibility? >> >> Similarly, can activities adopt a plan when acting as an agent, or can only >> entity agents adopt plans? >> >> Can associations be valid for a window of time for a given activity? For >> example, several agents are responsible for the activity of preparing and >> serving food in a restaurant (server, cook, bartender), but not all of them >> are responsible for the entire time the activity is active. To support this, >> start and end times should be added to Associations. >> >> >> >> >> >> >> >> -- >> Professor Luc Moreau >> Electronics and Computer Science tel: +44 23 8059 4487 >> University of Southampton fax: +44 23 8059 2865 >> Southampton SO17 1BJ email: l.moreau@ecs.soton.ac.uk >> United Kingdom http://www.ecs.soton.ac.uk/~lavm >> >> > > > -- Professor Luc Moreau Electronics and Computer Science tel: +44 23 8059 4487 University of Southampton fax: +44 23 8059 2865 Southampton SO17 1BJ email: l.moreau@ecs.soton.ac.uk United Kingdom http://www.ecs.soton.ac.uk/~lavm
Received on Wednesday, 26 September 2012 13:25:03 UTC