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Re: Step 1.e: Define the Techniques to be used

From: Alistair Garrison <alistair.j.garrison@gmail.com>
Date: Fri, 1 Jun 2012 08:42:15 +0200
Message-Id: <F135B70B-7602-42A0-973D-AD0404171843@gmail.com>
To: Vivienne CONWAY <v.conway@ecu.edu.au>, Eval TF <public-wai-evaltf@w3.org>
Dear All, 

The fact that evaluators each can have their own take even on WCAG 2.0 is proof enough that 1.e is needed - and should be non-optional.  If we fail to record the techniques selected and followed by the web developer, and ideally tested agains, what hope do we have of creating evaluations which are reproducible… or, indeed which provide useful feedback as to failings in implementation - and, importantly failings in technique selection.

To my mind, a goal of WCAG 2.0 is to let the web developer decide which techniques they believe satisfy the Success Criteria of WCAG 2.0 - and, the evaluators job to test what they have done.   That said, there will be a good deal of work ahead in educating people as to what satisfies each Success Criteria - and, 1.e being non-optional could play an important role. 

On a different note - if we look at an evaluation carried out by the same company that creates the website (first party) it would be laughable if they tested against anything but the techniques their developers used to create the website - why would they…  For them, following 1.e would be a 'no-brainer'… 

So, I'd really like to ask - "is 1.e being non-optional only objectionable to those who operate a third-party 'set in stone' evaluation methodology?" - as they could not possibly think of assessing anything other than they have already decided to assess… 

Interested to hear any thoughts…

All the best 


On 1 Jun 2012, at 05:37, Vivienne CONWAY wrote:

> Hi Richard
> I've actually been having a long debate (they get pretty excited) with the IG about this one.  According to WCAG 2, 2.4.1. is met if the ST of a correct heading structure is applied.  While I don't agree that having headings should be a sufficient technique on its own (due to the fact it doesn't help keyboard users), it appears to be set in WCAG 2 that way.  It fails 2.4.1 if there are no (working - implied I think) skip links and the heading structure is either non-existent or insufficient to bypass repeated navigation structures.
> Your thoughts?
> Regards
> Vivienne L. Conway, B.IT(Hons), MACS CT, AALIA(cs)
> PhD Candidate & Sessional Lecturer, Edith Cowan University, Perth, W.A.
> Director, Web Key IT Pty Ltd.
> v.conway@ecu.edu.au
> v.conway@webkeyit.com
> Mob: 0415 383 673
> This email is confidential and intended only for the use of the individual or entity named above. If you are not the intended recipient, you are notified that any dissemination, distribution or copying of this email is strictly prohibited. If you have received this email in error, please notify me immediately by return email or telephone and destroy the original message.
> ________________________________________
> From: RichardWarren [richard.warren@userite.com]
> Sent: Friday, 1 June 2012 1:45 AM
> To: detlev.fischer@testkreis.de; alistair.j.garrison@gmail.com; public-wai-evaltf@w3.org
> Subject: Re: Step 1.e: Define the Techniques to be used
> Hi Detlev,
> As mentioned before, meeting one individual SC does not mean automatically
> meeting the actual guideline subsection. In the case you mention - correct
> semantics (headings) can provide a way for blind users to navigate more
> easily (incl. skiping blocks). However a sighted keyboard user with a
> standard browser does not usually have access to the semantic code in the
> way that a screen reader does. So for these users we still need to provide a
> "skip" link for long navigation lists at least.
> So if "Commissioner says we have implemented skip links to meet 2.4.1 Bypass
> Blocks"  then I say great, but you also need to have suitable heading codes
> (and possibly something like "skip code samples" if the site is an on-line
> course in HTML) so we will check that your site has mechanism/s for
> bypassing repetitive blocks and non-informative blocks whilst we are at it
> for compliance with guideline 2.4.1.
> Richard
> -----Original Message-----
> From: detlev.fischer@testkreis.de
> Sent: Thursday, May 31, 2012 4:22 PM
> To: alistair.j.garrison@gmail.com ; public-wai-evaltf@w3.org
> Subject: Re: Fwd: Step 1.e: Define the Techniques to be used
> Hi Alistair, hi all,
> Don't know if it is a good idea to answer here since this now goes into the
> "Disposition of Comments" but I'll have a go nevertheless.
> As I understand it, we need to look for each SC if any of the Sufficient
> Techniques (or a set of combined techniques as expressed in the options of
> the "How to meet" document) has been suvessfully used. For that, it is not
> sufficient to test techniques being put forward by the comissioner.
> Example:
> * Commissioner says "we have implemented skip links to meet 2.4.1 Bypass
> Blocks"
> * You evaluate and find that for some reason skip links aren't properly
> implemented (fail of that technique)
> * There is a proper headings structure that meets SC 4.2.1 (or ARIA
> landmarks in a context where that is accessibility supported)
> Now as long as you don't hit a failure, I guess you woud need to say pass to
> the SC even though the technique submitted did not work.
> (Having said that, the faulty skip links may fail other SC, but not SC
> 2.4.1).
> Any thoughts?
> Regards,
> Detlev
> ----- Original Message -----
> From: alistair.j.garrison@gmail.com
> To: public-wai-evaltf@w3.org
> Date: 31.05.2012 17:06:52
> Subject: Fwd: Step 1.e: Define the Techniques to be used
>> Dear All,
>> Would it be possible to add my comments about Step 1.e to the comments
>> document - http://www.w3.org/WAI/ER/conformance/comments
>> Begin forwarded message:
>>> From: Alistair Garrison <alistair.j.garrison@gmail.com>
>>> Subject: Step 1.e: Define the Techniques to be used
>>> Date: 10 May 2012 10:48:41 CEST
>>> To: Eval TF <public-wai-evaltf@w3.org>
>>> Dear All,
>>> "Step 1.e: Define the Techniques to be used" - could we consider making
>>> this step non-optional?
>>> The first reason being that we really need to check their implementation
>>> of the techniques (W3C, their own code of best practice or whatever) they
>>> say they use.
>>> For example:
>>> - Case 1) If they have done something by using technique A, and we
>>> evaluate using technique B there could be an issue (they might fail B);
>>> - Case 2) If they have done something by using technique A, and we
>>> evaluate using technique A and B there still could be an issue (they
>>> might fail B);
>>> - Case 3) If they have done something by using technique A, and we
>>> evaluate using technique A - it seems to work.
>>> The second reason being that testing seems only to be really replicable
>>> if we know what the techniques were they said they implemented -
>>> otherwise, two different teams could easily get two different results
>>> based on the cases above.
>>> I would be interested to hear your thoughts.
>>> Very best regards
>>> Alistair
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Received on Friday, 1 June 2012 06:42:49 UTC

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