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[Fwd: Re: ERT WG feedback on "URI pattern matching"]

From: Shadi Abou-Zahra <shadi@w3.org>
Date: Thu, 03 Aug 2006 22:36:27 +0200
Message-ID: <44D25E4B.4060805@w3.org>
To: public-wai-ert@w3.org

-------- Original Message --------
Subject: Re: ERT WG feedback on "URI pattern  matching"
Date: Thu, 03 Aug 2006 16:32:27 +0000
From: Phil Archer <parcher@icra.org>
Organization: ICRA
To: public-xg-wcl@w3.org, public-wai-ert@w3.org

Dear Carlos and everyone in ERT,

Thank you very much for these comments, I must apologise for the delay 
in replying to you.

Your e-mail arrived at just the time we were cutting out various 
sections as we change our thinking from an XG to a group seeking a WG 
charter. We've simplified the document, highlighted several open 
questions (17 so far) and generally tidied things up. Unless an XG 
member raises serious objections, the report is now very close to its 
final form at [1].

Carlos Iglesias wrote:
> Dear WCL group,
> The ERT WG has looked at your work on "URI Pattern Matching for Groups of Resources" (Draft 0.1 17 June 2006) [1] with great interest. We have compared this work to our own (rough) requirements for identifying groups of resources in EARL [2]. During the ERT teleconference on 19 July 2006 [3], we have come to the conclusion that it may be too early for us to adopt this work as it currently stands but we will continue monitoring its development.

If we are successful in securing a WG charter, we see a full version of 
that paper as being an output in its own right, either as a Note or 
perhaps a Rec of its own. I know resource grouping is an issue for EARL 
and it would make sense to combine requirements lists and put heads 

> The following feedback for your consideration resulted from our discussion, we hope they will be of help to you in progressing this work:
> #1: It may be useful to consider labeling for parts of Web resources (aka "snippets"). For example, making a statement about a specific element within an HTML document or CSS page that is part of a delivery unit. This could be interesting for syndicated and aggregated content. Note: ERT WG is currently working on "pointer" mechanisms to identify such snippets.

Interesting. We have included this as an open question now. [2]
> #2: We acknowledge a potential problem is that the XG has decided to adopt RDF-CL, in which sub-domains of given host are apparently always in scope by definition, which is in conflict with some of the Domain and Sub-Domain pattern matching requirements (the possibility of sub-Domain exclusions). We would like to emphasize the importance of resolving this issue for compatibility with EARL, since it is a requirement for us that any references to resources are unambiguous.

We haven't decided to adopt RDF-CL. It has been an important input but, 
as the (much revised) section on Encodings now makes clear, it is not a 
complete encoding of the WCL model. We state that _for now_ it is 
workable, but make it clear that a WG is needed to come up with 
something more robust - i.e. an encoding of the full WCL model. The 
grouping issue is a key one in that regard.

> #3: It's not clear whether self-defined groups of pages (e.g. all the URLs that match an specific regular expression) are going to be covered or not. 
> On one hand the "Non-Requirements" section explicitly says that "It is not required that patterns allow matching to any conceivable pattern..." but on the other hand the "Outline Design" section says "The matching a pattern consists of an optionally case sensitive leftmost, rightmost or exact [or regex ???] match of the normalised text of the relevant component from the candidate URI." 
> Since this class of patterns are frequently used by automatic tools, and these are likely to be used as help to make assertions in several use cases (e.g. Web Accessibility or Mobile Web), it make sense to incorporate them into the labels.

Again, this is the kind of issue that the WG, if chartered, will have to 

Thanks again for taking the time and trouble to look at our work, it is 
very much appreciated.



P.S. Many of us will be in Gijon next month for the MWBP meeting...

[1] http://www.w3.org/2005/Incubator/wcl/XGR-report/
[2] http://www.w3.org/2005/Incubator/wcl/XGR-report/#oq11

> Regards,
>   Carlos Iglesias for ERT WG
> [1] <http://www.w3.org/2005/Incubator/wcl/matching>
> [2] <http://lists.w3.org/Archives/Public/public-wai-ert/2006Apr/0010>
> [3] <http://www.w3.org/2006/07/19-er-minutes>
> --
> Carlos Iglesias
> CTIC Foundation
> Science and Technology Park of Gijón
> 33203 - Gijón, Asturias, Spain
> phone: +34 984291212
> fax: +34 984390612
> email: carlos.iglesias@fundacionctic.org
> URL: http://www.fundacionctic.org 

Shadi Abou-Zahra     Web Accessibility Specialist for Europe | 
Chair & Staff Contact for the Evaluation and Repair Tools WG | 
World Wide Web Consortium (W3C)           http://www.w3.org/ | 
Web Accessibility Initiative (WAI),   http://www.w3.org/WAI/ | 
WAI-TIES Project,                http://www.w3.org/WAI/TIES/ | 
Evaluation and Repair Tools WG,    http://www.w3.org/WAI/ER/ | 
2004, Route des Lucioles - 06560,  Sophia-Antipolis - France | 
Voice: +33(0)4 92 38 50 64          Fax: +33(0)4 92 38 78 22 | 
Received on Thursday, 3 August 2006 20:36:44 UTC

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