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Re: Blog Post: 5 Simple Provenance Statements

From: Graham Klyne <GK@ninebynine.org>
Date: Tue, 25 Oct 2011 09:26:57 +0100
Message-ID: <4EA672D1.7070500@ninebynine.org>
To: Paul Groth <p.t.groth@vu.nl>
CC: "public-prov-wg@w3.org" <public-prov-wg@w3.org>
Paul,

I think this is a very useful contribution, in that illustrates well the sort of 
things we'd like to offer developers, but one which also (for me) highlights a 
potential problem.  For cases where we have shortcut properties, the expression 
of provenance is easy as you show, but I worry about a possible lack of graceful 
refinement/enlargement: that users will have a discontinuity in complexity to 
face as soon as they try to express something that is not covered by 
"well-known" shortcut properties.

An exercise I'd like to try is to start with the ASN in its current form, and 
explore 2-3 ways this might be represented in RDF.  One of these would be the 
"direct mapping" represented by the current OWL ontology.  Another would use 
named graphs to wrap *all* provenance statements.  A possible third way would 
invoke some additional vocabulary to define the mapping between short-cut 
properties and the full structure per ASN.

I need to work through this in some detail, but I'm not sure when I'll have 
time, so I wanted to float these ideas briefly as a kind of heads-up.

I think it's worth noting that I think the ASN will be very useful as a "pure" 
basis for exploring these ideas - I mention this as I may in the past have been 
less-than-convinced it was actually serving a useful purpose.

#g
--


On 23/10/2011 09:42, Paul Groth wrote:
> Hi All,
>
> I wrote a post at the Semantic Web Activity News blog about how to write down
> some simple provenance statements using PROV-DM
>
> http://www.w3.org/blog/SW/2011/10/23/5-simple-provenance-statements/
>
> Hopefully, this is useful not only for the outside world but to us as well.
>
> cheers,
> Paul
>
Received on Tuesday, 25 October 2011 08:53:32 GMT

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