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minutes: User Agent Accessibility Guidelines Working Group Teleconference 29 Jul 2010

From: Jim Allan <jimallan@tsbvi.edu>
Date: Thu, 29 Jul 2010 13:42:11 -0500
To: "'User Agent Working Group'" <w3c-wai-ua@w3.org>
Message-ID: <039e01cb2f4d$c19250d0$44b6f270$@tsbvi.edu>
>From http://www.w3.org/2010/07/29-ua-minutes.html

User Agent Accessibility Guidelines Working Group Teleconference
29 Jul 2010

See also: IRC log http://www.w3.org/2010/07/29-ua-irc 
Attendees

Present
Regrets
Chair
    KellyFord
Scribe
    Allanj

Contents

    * Topics
         1. Action Item Review
         2. Writing meeting logistics, etc.
         3. Tracking UAAG implementations
         4. 3.4.1
    * Summary of Action Items

<trackbot> Date: 29 July 2010

<scribe> scribe: Allanj
Action Item Review

<Greg> http://www.w3.org/WAI/UA/tracker/actions/open?sort=owner

zakim open next
Writing meeting logistics, etc.

kf: details at
http://lists.w3.org/Archives/Public/w3c-wai-ua/2010JulSep/0024.html
... will have IRC and phone connection
... working on video conference

times 12pm - 6pm Boston

5pm - 11pm London

9am - 3pm Seattle

discussion of F2F in Lyon, France

Simon not able to attend

discuss further next week.

Assets Conference in Orlando conflicts (Simon will be there)

<sharper> http://www.sigaccess.org/assets10/
Tracking UAAG implementations

implementations are in google docs

gl: do we want to create an issue to require the UA to allow the user to
hide images

sh: who is it useful for
... we had 3 reasons
... 1. RSI for navigating quickly
... 2. cognitive issues
... 3. screen magnification

gl: ADD content in complex images may be distracting
... for RSI images may take up too much room, reduce images to make
scrolling through lots of content easier
... same for screen magnification

<Greg> If a user agent hides an image but still reserves the same space it
would take up, simply filling it with white space and alt text, then we
don't get the benefits we were looking for for users with RSI (who sill have
to scroll over lots of space) and magnifiers (the same).

<Greg> Thus the ability to hide images *by itself* is not good enough, but
we may have enough in combination with other existing SC about reflowing,
etc.

kf: what would SC say?

<Greg> Three related abilities: 1. show/hide images; 2. show/hide alt text
for images (with or without the image); 3. yes or no to making alt text take
up the room originally taken up by the image.

kf: which items to render by default

this would be 3.1.2 plus Jeanne's action

gl: where do we clarify that this is different from images being hidden
(replaced by alt, or supplemented with alt/title)

kf: item 3 - should reflow the document to accommodate the alt.

kp: these are different situations. need the alt to take up the same amount
of space as the image so the flow remains the same when collaborating

kf: 3.1.2 user decides which alternative to be shown by default.

gl: it does allow the user to say what not to show. won't allow the UA to
hide images
... could have a CSS to use generated text to place 'alt' text after or
below the image
... want the user to be able to hide images.

kf: also have 3.1.3 that gets at same area

gl: this is not global, it is a per image case

kf: 3.1.4 fall back if default not available.
... what is end objective
... user gets to pick and choose what to render, what to render as
alternative, mix and match multiple alternatives simultaneously

gl: rendering simultaneous primary and alternative content should be AAA
... remove simultaneous, find better word
... show and hide primary content, show hide first tier alternative content,
toggle reserve space of primary content for rendering of alternative content
... 3.1.3 and 3.1.4 would be independent. my proposal would replace 3.1.2

kf: UA allows user to hide or show default content
... what default content?

ja: only content with alternatives - img, object, etc.

gl: is title an alternative
... anything that is always there (src) don't need to notify user.

<Greg> There are five meaningful permutations:

<Greg> a) Show image + hide alt = default, best for most people most of the
time

<Greg> b) Show image + show alt = rare

<Greg> c) Hide image + hide alt =

<Greg> d) Hide image + show alt + take up full space

<Greg> e) Hide image + show alt + compress space = best for RSI and
magnification

discussion of alt options
3.4.1

kf: this is exactly what a screen reader does.

gl: could be done with script, extension, or css

<Greg> (Not CSS, as the CSS can't selectively do it only when needed.)

ja: problem with 3.4.1 and word 'required', 'alt' is the only required
alternative.

<Greg> Questioning what 3.4.1 gives us beyond what we already get from 3.4.
Summary of Action Items
[End of minutes]

Jim Allan, Accessibility Coordinator & Webmaster
Texas School for the Blind and Visually Impaired
1100 W. 45th St., Austin, Texas 78756
voice 512.206.9315    fax: 512.206.9264  http://www.tsbvi.edu/
"We shape our tools and thereafter our tools shape us." McLuhan, 1964
Received on Thursday, 29 July 2010 18:36:03 UTC

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