Re: PROV-ISSUE-541: Notation Section 3.1.3 [prov-n]

Dear all,

Find below a proposed response to issue-514 and issue 515, found in the 
wiki at
http://www.w3.org/2011/prov/wiki/ResponsesToPublicComments#ISSUE-541_.28Optional_Generation_Time.29
at copied below.

Feedback welcome!
Luc

>
>       ISSUE-541 (Optional Generation Time)
>
>   * Original
>     email:http://lists.w3.org/Archives/Public/public-prov-wg/2012Sep/0135.html
>   * Tracker:http://www.w3.org/2011/prov/track/issues/541
>   * Group Response:
>       o It is correct that the PROV-N uses the production timeOrMarker
>         to encode time information in PROV-N and does not specify what
>         generation time means.
>       o It is the purpose of the prov-dm document to define what is
>         meant by generation time.
>       o We refrained from repeating such definition in the prov-n
>         document, to avoid potential inconsistencies between normative
>         documents.
>       o Instead the production generationExpression is followed by a
>         table, mapping prov-n arguments to the corresponding prov-dm
>         attributes, as defined in the prov-dm document.
>       o For instance, timeOrMarker is mapped to time, defined in
>         prov-dm as/time: an optional "generation time" (t), the time
>         at which the entity was completely created;/
>
>   * References:
>       o timeOrMarker
>         production:http://www.w3.org/TR/prov-n/#prod-timeOrMarker
>   * Changes to the document:
>       o Links in prov-n incorrectly link to draft in mercurial. They
>         must point tohttp://www.w3.org/TR/prov-dm/
>   * Original author's acknowledgement:
>
>
>       [edit
>       <http://www.w3.org/2011/prov/wiki/index.php?title=ResponsesToPublicComments&action=edit&section=43>]ISSUE-542
>       (Optional Usage Time)
>
>   * Original
>     email:http://lists.w3.org/Archives/Public/public-prov-wg/2012Sep/0136.html
>   * Tracker:http://www.w3.org/2011/prov/track/issues/541
>   * Group Response:
>       o Same response as for ISSUE-514
>   * References:
>   * Changes to the document: none
>   * Original author's acknowledgement:
>



On 10/09/12 11:00, Provenance Working Group Issue Tracker wrote:
> PROV-ISSUE-541: Notation Section 3.1.3 [prov-n]
>
> http://www.w3.org/2011/prov/track/issues/541
>
> Raised by: Paolo Missier
> On product: prov-n
>
> "Optional generation time" does not specify whether it is the start time or end time of the generation event.
>
>
>
>

-- 
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