Re: PROV-ISSUE-7 (define-derivation): Definition for Concept 'Derivation' [Provenance Terminology]

Luc Moreau wrote:
> 
> Dear all,
> 
> Over the last week, we debated the notion of resource (PROV-ISSUE-1),
> one of the concepts identified in the charter as core to a provenance
> data model. It would be good to discuss the notion of derivation.
> 
> Do we agree with the illustration of derivation [1]:
> in the example, chart c1 is a derivation of data set d1.
> Are there other interesting illustrations?

I'd agree with that as *an* example of derivation, but I'm sure there are many 
others.

Looking for direct derivations...

d1 -> f1
f1 -> r1
r1 -> lcp1
(lcp1,stats1) -> c1
(map1,c1,img1) -> art1
d1 -> d2 (assuming d1 was used as a basis for the update.  Maybe d2 was 
completely new data)
d2 -> f2 (not explicit in illistration, but assuming the same pattern)
f2 -> r2
(etc...)

I'd expect further derivations to be obtained using a transitive closure of these.

(I've assumed licences are separate from the resources they apply to, but that 
may be debatable.)

I've also assumed that derivation can be partial:

   d1 -> c1

does not exclude

   lcp1 -> c1
   stats1 -> c1

and an implication:

   (lcp1,stats1) -> c1
|-
   lcp1 -> c1
   stats1 -> c1

> Is derivation relating resources/resource representations/resource
> representation states?

To my mind, resources, where all of the above identified concepts are resources.

#g
--

> [1] http://www.w3.org/2011/prov/wiki/CharterConceptsIllustration
> 
> 
> 
> 
> On 05/20/2011 08:07 AM, Provenance Working Group Issue Tracker wrote:
>> PROV-ISSUE-7 (define-derivation): Definition for Concept 'Derivation' 
>> [Provenance Terminology]
>>
>> http://www.w3.org/2011/prov/track/issues/7
>>
>> Raised by: Luc Moreau
>> On product: Provenance Terminology
>>
>> The Provenance WG charter identifies the concept 'Derivation' as a 
>> core concept of the provenance interchange language to be standardized 
>> (see http://www.w3.org/2011/01/prov-wg-charter).
>>
>> What term do we adopt for the concept 'Derivation'?
>> How do we define the concept 'Derivation'?
>> Where does concept 'Derivation' appear in ProvenanceExample?
>> Which provenance query requires the concept 'Derivation'?
>>
>> Wiki page: http://www.w3.org/2011/prov/wiki/ConceptDerivation
>>
>>
>>
>>
>>    
>

Received on Saturday, 28 May 2011 07:34:42 UTC