RE: Alternative Formats

Thank you for your reply. It's my goal to have EVERYTHING accessible to
EVERYONE.

 

Sincerely,

Ryan Jean

Assistant IT Specialist

The Disability Network

Flint, MI

 

  _____  

From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org] On Behalf
Of Phill Jenkins
Sent: Thursday, August 28, 2008 10:04 AM
To: w3c-wai-ig@w3.org
Subject: RE: Alternative Formats

 


>  . . . I was referring to all formats, such as visual, audio, and written.
I do see where all 3 
> of these would fall into web accessibility. Visual for graphics, audio for
sound, and 
 > written for downloading files as PDF or TXT. Do you agree? 

Well, I would expand your simple list to also include the following, quoted
from Understand WCAG: 

*	Controls, Input: If non-text content is a control or accepts user
input, then it has a
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/text-equiv-all.html#namedef> name
that describes its purpose. (Refer to
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/ensure-compat.html> Guideline 4.1
for additional requirements for controls and content that accepts user
input.) 
*	Time-Based Media: If non-text content is time-based media, then text
alternatives at least provide descriptive identification of the non-text
content. (Refer to
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv.html> Guideline 1.2
for additional requirements for media.) 
*	Test: If non-text content is a test or exercise that
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/text-equiv-all.html#must-nontextd
ef> must be presented in non-text format, then text alternatives at least
provide descriptive identification of the non-text content. 
*	Sensory: If non-text content is primarily intended to create a
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/text-equiv-all.html#sensoryexpdef
> specific sensory experience, then text alternatives at least provide
descriptive identification of the non-text content. 
*
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/text-equiv-all.html#CAPTCHAdef>
CAPTCHA: If the purpose non-text content is to confirm that content is being
accessed by a person rather than a computer, then text alternatives that
identify and describe the purpose of the non-text content are provided, and
alternative forms of CAPTCHA using output modes for different types of
sensory perception are provided to accommodate different disabilities. 
*	Decoration, Formatting, Invisible: If non-text content is
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/text-equiv-all.html#puredecdef>
pure decoration, is used only for visual formatting, or is not presented to
users, then it is implemented in a way that it can be ignored by
<http://www.w3.org/TR/UNDERSTANDING-WCAG20/text-equiv-all.html#atdef>
assistive technology.


Regards,
Phill Jenkins
IBM Research - Human Ability & Accessibility Center
http://www.ibm.com/able