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Re: PROV-ISSUE-530: Data Model Section 5.7.2 (Table 6) [prov-dm]

From: Paul Groth <p.t.groth@vu.nl>
Date: Mon, 24 Sep 2012 13:54:35 +0200
Message-ID: <CAJCyKRpPTja7AXkk-jyS=tUnuBJybUzEKDExqb0Pqg_rUJR=Ug@mail.gmail.com>
To: Luc Moreau <l.moreau@ecs.soton.ac.uk>
Cc: Provenance Working Group <public-prov-wg@w3.org>
looks good to me.

Paul

On Mon, Sep 24, 2012 at 8:46 AM, Luc Moreau <l.moreau@ecs.soton.ac.uk> wrote:
> Dear all,
>
> Find a proposed response for this in the wiki at:
> http://www.w3.org/2011/prov/wiki/ResponsesToPublicComments#ISSUE-530_.28attributes.29
> For convenience, it is copied below.
> Comments, feedback?
> Best regards,
> Luc
>
>
> ISSUE-530 (attributes)
>
> Original email:
> http://lists.w3.org/Archives/Public/public-prov-wg/2012Sep/0120.html
> Tracker: http://www.w3.org/2011/prov/track/issues/530
> Group Response
>
> The group has given careful considerations to attributes in prov-dm,
> specifically time, location and role.
> The group could not reach consensus to allow these attributes to more
> concepts of the data model.
> No other external comments made a request for allowing such attributes in
> more concepts.
> Role:
>
> We have already elaborated on roles in our response to ISSUE-532
>
> Location:
>
> While a notion of location is fairly intuitive for an activity or entity, it
> is less intuitive for associations for instance. In an association, the
> activity may have a location, and the agent may have a location. It is
> however unclear what the location of the association itself may be.
>
> Time:
>
> The same comments apply for time. However, in this case, the constraints
> document explains what kind of ordering constraints exist, between an agent
> and activity, for instance.
>
> So overall, the group could not find consensus to broaden these attributes
> to other relations in a meaningful manner. Given implementation, using the
> PROV extension mechanism, are however able to add similar attributes for
> their specific needs.
> References:
>
> Roles:
> http://www.w3.org/2011/prov/wiki/ResponsesToPublicComments#ISSUE-532_.28Role.29
> Resolution on roles:
> http://www.w3.org/2011/prov/meeting/2012-06-07#resolution_2
> Time constraints:
> http://lists.w3.org/Archives/Public/public-prov-wg/2012Sep/0120.html
>
> Proposed changes:none
> Original author's acknowledgement:
>
>
>
>
> On 10/09/12 09:54, Provenance Working Group Issue Tracker wrote:
>
> PROV-ISSUE-530: Data Model Section 5.7.2 (Table 6)   [prov-dm]
>
> http://www.w3.org/2011/prov/track/issues/530
>
> Raised by: Luc Moreau
> On product: prov-dm
>
>
>
> http://www.w3.org/2011/prov/wiki/LC_Feedback#Data_Model_Section_5.7.2_.28Table_6.29
>
> ISSUE-463
>
> The restrictions on when time, location and role can be used should be
> reviewed after the public feedback period closes and changes are made to the
> model. In particular, I think there is justification for allowing other
> relationships, such as Association and Delegation, to take these attributes.
> The model would be more flexible without these restrictions (which could be
> circumvented using user-defined optional attributes if needed, at the
> expense of maintaining a single standard representation for the
> information).
>
>
>
>
>
>
>
> --
> 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
>



-- 
--
Dr. Paul Groth (p.t.groth@vu.nl)
http://www.few.vu.nl/~pgroth/
Assistant Professor
- Knowledge Representation & Reasoning Group |
  Artificial Intelligence Section | Department of Computer Science
- The Network Institute
VU University Amsterdam
Received on Monday, 24 September 2012 11:55:09 GMT

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