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Re: design flexibility in WCAG 2 (was EOWG for review: Benefits of WCAG 2.0 slides)

From: Shawn Henry <shawn@w3.org>
Date: Wed, 24 Jun 2009 00:42:02 -0500
Message-ID: <4A41BCAA.8090102@w3.org>
To: Shadi Abou-Zahra <shadi@w3.org>
CC: EOWG <w3c-wai-eo@w3.org>
Thanks for the comments, Shadi. Replies below.

Shadi Abou-Zahra wrote:
> Hi Shawn, all,
> Not sure if this has been discussed yet: sometimes when talking to Web 
> developers, the "design flexibility" aspect becomes quite important and 
> I'm not sure that the slides address this sufficiently.
> First, the point in slide 21 "More design flexibility" is unclear (the 
> notes do not clarify what the intention is). Also, all listed examples

The preceding text to that slide says, "First letís look at examples of what WCAG 2 allows that WCAG 1 did not; that is, where WCAG 2 is less restrictive than 1.0."

The slide text says "WCAG 2 allows more movement within defined parameters"

The notes for slide 21 say: "WCAG 1.0 limited movement used in web pages, through the following checkpoints:... WCAG 2 allows more movement, within defined parameters."

How can we make it more clear?

> are quite similar and may not be as convincing for some developers who 
> do not use moving, blinking, or flashing content.

To better show that this is just one example, I changed the slide title from "More design flexibility" to "More design flexibility, e.g.:"

The following slides show other examples of flexibility:
* Scripting allowed!
* Scripting Techniques
* Flexibility for rich Internet applications (Ajax, DHTML)
* Adaptability through accessibility-supported technologies

> There are several other examples on a Success Criteria level that show 
> the flexibility of WCAG 2. For instance "An alternative for time-based 
> media or audio description of the prerecorded video content is provided 
> for synchronized media" (SC 1.2.3) demonstrates design options.
> In other Success Criteria there are specific situations listed, or the 
> requirements have been separated into different Success Criteria (such 
> as the criteria for pre-recorded vs. live multimedia that are provided 
> in different Conformance Levels). This all demonstrates flexibility.

hum, I'm missing how these show flexibility. They seem to show more preciseness -- that is, different requirements for different situations. But that doesn't seem like flexibility.

> However, more important for developers is often the flexibility on the 
> techniques level. Often designers can select between different types of 
> techniques to address an accessibility requirement. This flexibility is 
> a significant benefit of WCAG 2 that deserves more focus (there is some 
> mention of this in slide 15 but it does not come over clearly IMO).

I bolded this point in slide 15 notes: "This is another aspect of the flexibility of WCAG 2."

To slide 20 I added: "While WCAG 2 itself provides a stable standard for what users need, <strong>the Techniques provide flexibility in how developers meet usersí needs. There are different Techniques for different situations. And the Techniques are optional; you can use other ways to meet the WCAG 2 success criteria.</strong>"

Let us know if you think this doesn't cover it sufficiently.

> So, to summarize my comments:
> #1. the notes in slide 21 are unclear (need to make the point clearer)
> #2. consider using other examples for slide 21 (or an additional slide)
> #3. consider adding a slide about flexibility of the "Success Criteria 
> <-> Techniques" framework, and that different options are provided
> Best,
>   Shadi
> Shawn Henry wrote:
>> EOWG,
>> I have updated the "Benefits of WCAG 2.0" slides based on feedback 
>> from today's teleconference[1]. See 
>> http://www.w3.org/WAI/EO/Drafts/slides/WCAG2_benefits-new.ppt
>> (For those who didn't see today's agenda: changes from the previous 
>> version are indicated in the Notes with ++changed.)
>> These slides are now done, except for slide 8. Sharron will be 
>> updating the HTML version next week. Therefore, if you have any 
>> comments, it would be nice to send them *by Wednesday 24 June*. 
>> Remember to send copyedits and things that do not require EOWG review 
>> to wai-eo-editors@w3.org
>> Notes on image alt:[2]
>> - The decorative images have no/null alt in both the ppt and the html. 
>> They are noted in the Notes section.
>> - The logos have appropriate alt text.
>> - The color contrast screen capture's alt is "(screen capture 
>> described in Notes section)".
>> - The screen capture of the Quick Reference has no alt; "Quick 
>> Reference screen shot" is the heading of the slide (which is not 
>> displayed); and there is a detailed description of the image at the 
>> bottom of the Notes. This provides a detailed description without 
>> interrupting the flow on the slide text and main notes.
>> - Slide 15 (Techniques document) & 27 (Understanding document) have 
>> text in an image (because it matches the images used elsewhere, such 
>> as http://www.w3.org/WAI/intro/wcag20). Currently they have no alt, 
>> and are described in detail at the bottom of the Notes. Putting the 
>> description there lets us use formatting such as bullets and italics, 
>> which would not be available in alt.
>> Comments welcome on this approach to alt for these images.
>> Thanks,
>> ~Shawn
>> [1] Changes on Friday 19 June:
>> * updated the alt for images
>> * moved the note to presenters about reading the slide text from slide 
>> 4 to slide 2
>> * added to the slide "Cooperation with other [@@standards and policies]":
>> Note to presenters: If there are policies that reference WCAG 2.0 or 
>> directly relate to WCAG 2.0 in the organization, country, or other 
>> area related to your audience, consider listing those on the slide and 
>> mentioning the relationship. To find out about local policies, you can:
>> - search in Policies Relating to Web Accessibility 
>> <http://www.w3.org/WAI/Policy/>
>> - send an email to the WAI Interest Group (IG) mailing list 
>> <http://www.w3.org/WAI/IG/#mailinglist>
>> * added to the slide "Authorized Translations":
>> Note to presenters: If there are WCAG 2.0 translations in the 
>> languages of your audience, consider including the link to the 
>> translation(s) in the slide.
>> [2] Instructions for adding alt to images is in the ppt Help... 
>> however, I didn't figure out how to do it without the mouse. :(
Received on Wednesday, 24 June 2009 05:42:13 UTC

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