W3C home > Mailing lists > Public > public-prov-wg@w3.org > November 2011

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


This email, including any attachment, is confidential and may be legally privileged.  If you are not the intended recipient or if you have received this email in error, please inform the sender immediately by reply and delete all copies from your system. Do not retain, copy, disclose, distribute or otherwise use any of its contents.  

Whilst we have taken reasonable precautions to ensure that this email has been swept for computer viruses, we cannot guarantee that this email does not contain such material and we therefore advise you to carry out your own virus checks. We do not accept liability for any damage or losses sustained as a result of such material.

Please note that incoming and outgoing email communications passing through our IT systems may be monitored and/or intercepted by us solely to determine whether the content is business related and compliant with company standards.

The Stationery Office Limited is registered in England No. 3049649 at 10 Eastbourne Terrace, London, W2 6LG
Received on Friday, 18 November 2011 13:00:03 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 16:51:04 UTC