RE: SC 1.1.1 Text Alternative Computation

Frank,

 

The thing that may need to be kept in mind is that for IMAGES that use ARIA
(aria-labelledby, aria-label) and the title attribute for alternative text –
that there is a manual check that calls for determining if they are
<http://www.w3.org/TR/2008/REC-WCAG20-20081211/#accessibility-supporteddef>
accessibility supported.

 

See  F65: Failure of Success Criterion 1.1.1 due to omitting the alt
attribute or text alternative on img elements, area elements, and input
elements of type "image".

 <http://www.w3.org/TR/WCAG20-TECHS/F65.html>
http://www.w3.org/TR/WCAG20-TECHS/F65.html 

 

 

 

* katie *

 

Katie Haritos-Shea 
Senior Accessibility SME (WCAG/Section 508/ADA/AODA)

 

Cell: 703-371-5545 |  <mailto:ryladog@gmail.com> ryladog@gmail.com | Oakton,
VA |  <http://www.linkedin.com/in/katieharitosshea/> LinkedIn Profile |
Office: 703-371-5545

 

From: Frank Berker [mailto:fb@ftb-esv.de] 
Sent: Wednesday, December 10, 2014 8:21 AM
To: public-auto-wcag@w3.org
Subject: SC 1.1.1 Text Alternative Computation

 

Hi everyone,

I spent some time on WAI-ARIAs name calculation algorithm
<http://www.w3.org/TR/wai-aria/roles#namecalculation>  and added the results
to the wiki in pseudo-code and UML
<https://www.w3.org/community/auto-wcag/wiki/Text_Alternative_Computation> .
The algorithm gets all textual alternatives (aria-labelledby, aria-label,
input values, alt, title) for image, input, area applet, embed and object
elements and concatenates them.
The questions are now: 

*	Is my understanding of the specification valid?
*	Best method to incorporate it in the wiki?
*	Best method to use the algorithm from the tests the wiki, if we
split the tests to elements with an alternative text and elements without an
alternative text?

Thank you in advance for any input.

Best from Wetter
Frank





-- 
Frank Berker
fb@ftb-esv.de <mailto:fb@ftb-esv.de>                       http://ftb-esv.de
FTB - Forschungsinstitut Technologie und Behinderung
Grundschötteler Strasse 40,             58300 Wetter
Telefon: 02335/9681-34        Telefax: 02335/9681-19