Re: PROV-ISSUE-193: Section 5.3.2.2 (PROV-DM as on Nov 28) [prov-dm]

Hi Satya,
This issue is now closed.
Luc

On 02/14/2012 10:51 PM, Satya Sahoo wrote:
> Hi Luc,
> The new relations wasStartedBy and wasEndedBy in DM TPWD have resolved 
> this issue. I am fine with closing this issue (I will raise a separate 
> issue for the confusion over wasStartedBy).
>
> Thanks.
>
> Best,
> Satya
>
> On Thu, Dec 8, 2011 at 5:04 AM, Luc Moreau <L.Moreau@ecs.soton.ac.uk 
> <mailto:L.Moreau@ecs.soton.ac.uk>> wrote:
>
>     Hi Satya,
>
>     On 12/07/2011 02:09 AM, Provenance Working Group Issue Tracker wrote:
>
>         PROV-ISSUE-193: Section 5.3.2.2 (PROV-DM as on Nov 28)  [prov-dm]
>
>         http://www.w3.org/2011/prov/track/issues/193
>
>         Raised by: Satya Sahoo
>         On product: prov-dm
>
>         Hi,
>         The following are my comments for Section 5.3.2.2 of the
>         PROV-DM (as on Nov 28):
>
>         5.3.2.2 Start and End Records
>         1. A start record is a representation of an agent starting an
>         activity. An end record is a representation of an agent ending
>         an activity.
>
>         Comment: The names of these records should explicitly include
>         "Activity", since on their own a "start" and "end" record may
>         mean start of an event also?
>
>
>     Of course we can change the name, but I don't see what confusion
>     there is.  Where did we mention start of an event?
>     This is not really meaningful in this context.
>
>         It is not clear why the WG should create "start" and "end"
>         records for agent starting and ending an activity. What about
>         "pausing", "re-starting", "increasing rate of an activity"
>         (e.g. experiment rate was increased by addition of reagent by
>         researcher) to name a few association types between activity
>         and agent?
>
>
>
>     Ultimately, underpinning prov-dm is a notion of interval, for
>     entities and for activities.
>     I think it's important for prov-dm to have construct to explain
>     what brings them about. Hence the requirement for starting/ending
>     activities.
>
>     There is nothing in the model related to paused/unpause state,
>     activity rate, etc. They can be introduced with application
>     specific attributes,
>     and specialisation of wasAssociatedWith.
>
>
>         Thanks.
>
>         Best,
>         Satya
>
>
>
>     Luc
>
>
>
>
>     -- 
>     Professor Luc Moreau
>     Electronics and Computer Science   tel: +44 23 8059 4487
>     <tel:%2B44%2023%208059%204487>
>     University of Southampton          fax: +44 23 8059 2865
>     <tel:%2B44%2023%208059%202865>
>     Southampton SO17 1BJ               email: l.moreau@ecs.soton.ac.uk
>     <mailto:l.moreau@ecs.soton.ac.uk>
>     United Kingdom http://www.ecs.soton.ac.uk/~lavm
>     <http://www.ecs.soton.ac.uk/%7Elavm>
>
>
>

-- 
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