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Comments on PAQ

From: Cresswell, Stephen <stephen.cresswell@tso.co.uk>
Date: Fri, 18 Nov 2011 12:59:18 -0000
Message-ID: <F22D0BFCDD4DDC44B92C4E24D751CB93AEDB37@W3EXC017023.theso.co.uk>
To: "Graham Klyne" <GK@ninebynine.org>, "Paul Groth" <p.t.groth@vu.nl>
Cc: "Provenance Working Group WG" <public-prov-wg@w3.org>
 

Graham, Paul,

 

I have a few comments on PAQ document (not obstructing its release).  I
read it from the perspective of needing to decide on some solution to
deploy.  I think the document works and I learned quite a lot reading
from it.  The biggest question I had was why some possibilities seem to
be missing, which I think Luc already flagged. I just wanted to
emphasise this because (unless I misunderstand it) the missing
possibilities are (from my perspective) some of the most important ones.

 

I got these:

If a resource is published by HTTP, or it is HTML or XHTML, then we can
link to provenance by provenance-uri or provenance-service-uri.

If a resource is some form of RDF, then we can give provenance-uri (but
apparently not a provenance-service-uri?).

 

Despite the coverage of querying provenance in SPARQL, the document
doesn't tell us how to publish a resource and indicate that its
provenance can be retrieved from a particular SPARQL endpoint (using a
given entity-uri and/or a given named graph).  Neither does there seem
to be a way for a provenance service to give back a link to a SPARQL
endpoint.  SPARQL endpoints can be self-describing through SPARQL
service descriptions, but surely we still need to be able to indicate
that a URI provided for provenance is a SPARQL endpoint.  That seems to
be a conspicuous gap.

 

Minor points:

Section 5.3 - Did you consider using "DESCRIBE
<http://example.org/resource> {}" instead of the CONSTRUCT query? 

C.1 Gap Analysis - drops into 1st person (not in an annotation).

 

Stephen Cresswell

 


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Received on Friday, 18 November 2011 13:00:03 UTC

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