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Re: Comments on the Prov Primer

From: Ivan Herman <ivan@w3.org>
Date: Wed, 31 Oct 2012 19:02:43 +0100
Cc: Provenance Working Group <public-prov-wg@w3.org>
Message-Id: <AEEEFAF0-2FB4-4AD5-88C5-0A2087005681@w3.org>
To: "Miles, Simon" <simon.miles@kcl.ac.uk>

thank you very much. For the records, I am fully satisfied:-)


On Oct 29, 2012, at 14:44 , Miles, Simon wrote:

> Hello Ivan,
> Sorry this has taken a long time to complete, but I believe all the matters you raised below regarding the primer have now been addressed. Specifically:
> - There are now full separate PROV-O Turtle and PROV-N files linked from the document (Section 3.10) that can be copied from by developers.
> - The example figures have been adjusted to have each CURIE on one line.
> - The PROV-N notation for unspecified values has been explained when first used, in Section 3.3:
> "Note that the - argument in the examples above denote unspecified optional information. See the [PROV-N] specification for the details of what arguments may be expressed in each PROV-N statement."
> - The discrepancy with derivation for the old and new charts/datasets has been clarified in Section 3.6: "(the same relation could be expressed between the old chart and old dataset)"
> - The typos, and extra and missing spaces mentioned have been fixed, and the status will be correct in the coming release.
> These changes can be seen in the latest editor's draft:
>  http://dvcs.w3.org/hg/prov/raw-file/default/primer/Primer.html
> thanks again for the comments,
> Simon
> Dr Simon Miles
> Senior Lecturer, Department of Informatics
> Kings College London, WC2R 2LS, UK
> +44 (0)20 7848 1166
> Automatically Adapting Source Code to Document Provenance:
> http://eprints.dcs.kcl.ac.uk/1397/
> ________________________________________
> From: Ivan Herman [ivan@w3.org]
> Sent: 31 July 2012 15:52
> To: Provenance Working Group
> Subject: Comments on the Prov Primer
> Reading http://www.w3.org/TR/2012/WD-prov-primer-20120724/, some comments. Nothing major...
> - The wrong pattern was used in the status section: it says "This document is intended to become a W3C Recommendation." which, I believe, is not the case. There is a separate entry for notes in recspec ("WD-NOTE") (hopefully that works, but maybe it does not, in which case we should talk to Robin:-)
> - Right after 2.2 there is a 'Use' word standing alone… Looking at the HTML source it says <p>Use</section> :-(
> - Last sentence in 2.4: "PROV , the agent" -> "PROV, the agent"
> - Diagrams right before 3.2 (and, actually, all other diagrams): I think it would be better to use diagrams where the CURIE labels are on one line. After all, these are URI-s, even if in an abbreviated form, whereas the diagram does not really make that clear… It is also more in line with the Turtle/Prov-n codes.
> - (I am not sure how to handle this optimally) When reading section 3.3, and looking at the prov-n example at the end, I found
> wasGeneratedBy(ex:chart1, ex:illustrate, -)
> and I was wondering (not being familiar with the prov-n syntax) what the '-' character meant. It is only way later (in section 3.8) that I realized that the slot is used for a time value and '-', I presume, means 'not specified'. Maybe it is worth putting some sort of a forward reference into 3.3. to help the poor reader…
> - Again as a newcomer… in 3.6 I was a little bit puzzled by the
>    ex:chart2 prov:wasDerivedFrom ex:dataSet2
> statement. What I mean is: it is fine if I look at 'wasDerivedFrom' as a very high level statement stating the origin of one entity in terms of the other (is that a correct interpretation?) but, then, why don't I have also
>    ex:chart1 prov:wasDerivedFrom ex:dataSet1 ?
> What drew my attention on that was looking at the complete figure in 3.10 and noting the assymetry in the figure. After all, ex:chart2 is created exactly through the same steps as ex:chart1 (illustrate-composition-compose-data) except that using a different data set, and that does not show at all.
> (I guess representing this symmetry might become a bit hairy but may be worth noting in the text that these could be done as well.)
> Maybe it is a possibility to introduce the wasDerivedFrom in the very first part of the text, making it clear that we can have such very high level relationships among entities.
> - It may be worth making the turtle and prov-n files available via links in 3.10. People may want to use that as a copy-paste example for their own usage, for example…
> - In references: for all entries spaces are missing between the authors' list and the title. Eg, "Paul GrothPROV-AQ".
> I hope this helps!
> Cheers
> Ivan
> ----
> Ivan Herman, W3C Semantic Web Activity Lead
> Home: http://www.w3.org/People/Ivan/
> mobile: +31-641044153
> FOAF: http://www.ivan-herman.net/foaf.rdf

Ivan Herman, W3C Semantic Web Activity Lead
Home: http://www.w3.org/People/Ivan/
mobile: +31-641044153
FOAF: http://www.ivan-herman.net/foaf.rdf
Received on Wednesday, 31 October 2012 18:03:08 UTC

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