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Re: PROV-ISSUE-207 (start and end records): start and end records [prov-dm]

From: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
Date: Wed, 18 Apr 2012 07:52:21 +0100
Message-ID: <EMEW3|1d7a20fe5bee21e1b5c69a48b6c2b54do3H7qO08L.Moreau|ecs.soton.ac.uk|4F8E64A5.50408@ecs.soton.ac.uk>
To: Provenance Working Group WG <public-prov-wg@w3.org>
Hi all,
Start and end appeared in wd4 and are part of wd5.
I am closing this issue.
Regards,
Luc

On 12/21/2011 10:20 PM, Provenance Working Group Issue Tracker wrote:
> PROV-ISSUE-207 (start and end records): start and end records [prov-dm]
>
> http://www.w3.org/2011/prov/track/issues/207
>
> Raised by: Luc Moreau
> On product: prov-dm
>
>
> We have recently voted on definitions for generation and usage records.
> Start and end records are the corresponding 'instantaneous events' for activities.
>
> We should therefore define start/end records as representation of activity start/end events.
>
> Second, time is handled differently for entities and activities. The placeholders for time information related to entities is in generation and usage events. But for activities, it's in the activity record.
>
> Shouldn't activity start/end time be moved to start/end record?
>
> If we do move activity start/end time to start/end record, then shouldn't we also make the agent optional, for cases where we want to assert time without knowing the agent.
>
> This latter proposal may also have implications for the prov-o ontology.
>
>
>
>
>    

-- 
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, 18 April 2012 06:52:52 GMT

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