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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: Mon, 30 Apr 2012 12:26:45 +0100
Message-ID: <EMEW3|b88d4e6a6349b4576e08228a5f3b22aeo3YCQo08L.Moreau|ecs.soton.ac.uk|4F9E76F5.5090501@ecs.soton.ac.uk>
To: public-prov-wg@w3.org
Hi Paul,

Do you have a concrete use case, in particular, with attributes?

Thanks,
Luc

On 04/30/2012 12:17 PM, Paul Groth wrote:
> I think traced-to is useful to sometime assert especially in the case
> where you want to be very vague about provenance. It's also nice to
> have attributes so that you can associate other sorts of information
> with it.
>
> However, if others think it's nicer to be inference only then I won't
> be stand in the way.
>
> cheers
> Paul
>
> On Mon, Apr 30, 2012 at 1:02 PM, Provenance Working Group Issue
> Tracker<sysbot+tracker@w3.org>  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 Monday, 30 April 2012 11:27:16 GMT

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