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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: Timothy Lebo <lebot@rpi.edu>
Date: Tue, 15 May 2012 11:11:42 -0400
Cc: public-prov-wg@w3.org
Message-Id: <50B3DBB7-C9F5-46C5-B7A1-79D4BB088437@rpi.edu>
To: Luc Moreau <L.Moreau@ecs.soton.ac.uk>

On May 15, 2012, at 11:06 AM, Luc Moreau wrote:

> 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.

+1

-Tim

> 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 15:12:55 GMT

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