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Re: PROV-ISSUE-370 (tracedTo-inference-only): Should tracedTo be moved to prov-constraints and be defined as a binary relation that can be inferred [prov-dm]

From: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
Date: Tue, 15 May 2012 16:06:09 +0100
Message-ID: <EMEW3|a4bbfbf3bcb1389090602c50e184db2bo4EG6C08L.Moreau|ecs.soton.ac.uk|4FB270E1.7090207@ecs.soton.ac.uk>
To: public-prov-wg@w3.org
Hi all,

I didn't see support for dropping tracedTo from prov-dm, or even making 
it binary.

Given this, I propose to close this issue, without any change to the 
specification.
This means that tracedTo can be asserted.

James, this may have implications on the constraints document.

Regards,
Luc

On 04/30/2012 12:02 PM, Provenance Working Group Issue Tracker wrote:
> PROV-ISSUE-370 (tracedTo-inference-only): Should tracedTo be moved to prov-constraints and be defined as a binary relation that can be inferred [prov-dm]
>
> http://www.w3.org/2011/prov/track/issues/370
>
> Raised by: Luc Moreau
> On product: prov-dm
>
>
> TracedTo was introduced in the data model so as to have a transitive relation over derivations, etc. It can be inferred. In contrast, its definition as an assertion was not very compelling. In the latest version of prov-constraints, it is only defined as something that can be inferred.
>
> Really, it looks like a relation that is useful to express queries.
>
> So, in the spirit of simplification, should we move it out of prov-dm, and have it defined in prov-constraints only.
>
> At the same time, it could be simplified to a binary relation, since we have no way of inferring attributes for this relation.
>
>
>
>
>    

-- 
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 Tuesday, 15 May 2012 15:06:44 GMT

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