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Re: Tests 19, 58, 59, 60, and 191

From: Chris Ridpath <chris.ridpath@utoronto.ca>
Date: Mon, 20 Dec 2004 12:27:15 -0500
Message-ID: <00dc01c4e6b9$261c1790$e29a968e@WILDDOG>
To: "Gregg Vanderheiden" <gv@trace.wisc.edu>, "'WAI WCAG List'" <w3c-wai-gl@w3.org>

> 191 - Anchor element's TITLE attribute must describe the link destination
> http://www.w3.org/WAI/GL/WCAG20/tests/test191.html
>
> IS THERE A REQUIREMENT THAT THERE BE A TITLE ATTRIBUTE??
>
The HTML spec does not require it.

The WCAG requirement would be success criteria 6 for level 2 of guideline
3.2:
http://www.w3.org/WAI/GL/WCAG20/#consistent-behavior-target-identified

> 58 - INPUT element with type of "image" must have an ALT attribute.
> - NEED TO CHECK SPELLINGS ON THESE SOMETIME.
>
Yes. A good proofreading is welcome too. (I've fixed the 'funtion' spelling
mistake.)

> - WOULD BE GOOD TO START INDICATING IF THESE
> TESTS ARE NECESSARY AND IF THEY
> ARE 'SUFFICIENT' FOR THE SC THEY REFERENCE.
>
I think that if they are in the test suite then they are necessary. If not
necessary then they should be dumped.

A couple of tests have been dumped already. I've marked them as 'not
required' and removed them from the main list but they are left on the
server for reference.

We can sort the tests by success criteria so you can see which tests are
sufficient for each SC. Here's a link to show what that looks like in rough
form. (Note that this is a draft document on the ATRC development server.
Very changeable and could be removed at any time.)
http://tile-cridpath.atrc.utoronto.ca/acheck/servlet/ShowWcag

> 59 - INPUT element with type of "image" must have Alt text that describes
> the purpose of the control.
> http://www.w3.org/WAI/GL/WCAG20/tests/test59.html
>
> THIS ONE IS INCORRECT:
> IT SHOULD PROVIDE THE PURPOSE OF THE IMAGE - NOT DESCRIBE THE PURPOSE.
> FOR EXAMPLE - YOU HAVE IMAGES IN FRONT OF EACH ITEM TO INDICATE IF IT IS
> DONE OR NOT.   THE ALT TEXT SHOULD NOT DESCRIBE THE FUNCTION (E.G. "ICON
TO
> INDICATE IF THIS IS DONE OR NOT" ) BUT RATHER PROVIDE THE FUNCTION  (E.G.
> "DONE")
>
I've modified the text of the test so it is more similar to the success
criteria. The success criteria says"
"...text alternatives identify the purpose or function of the non-text
content".

The test now says:
"...Alt text that identifies the purpose or function of the image. "

Is that right?

> 60 - INPUT element with type of "image" should have short Alt text.
> http://www.w3.org/WAI/GL/WCAG20/tests/test60.html
>
> I BELIEVE THIS IS EXTRA.
> THAT IT IS NEITHER NECESSARY NOR SUFFICIENT.
> IT SHOULD BE ADVISORY.
>
We know that poor Alt text is a problem and this can help to improve it.
Certainly not sufficient but I believe necessary at least at level 3. I know
this is an uphill battle but, here goes, I believe it should be required at
level 2 for "increased accessibility".

What is advisory?

>> "Where does the link text go?"
>>
> NOT SURE I UNDERSTAND THIS ONE
>
I meant the text that describes the destination of the link. For example:

If you have an anchor containing an image and text, what is the proper way
to identify the destination of the link? In the anchor's title attribute? In
the image's alt attribute? In the link text itself?

<a href="dogs.html" title="dogs information"><img src="dusty.jpg" alt="photo
of my dog Dusty" />dogs</a>

Where does it go? How are these 3 bits of information related? These are the
questions I'd like to see clearly answered.

Thanks for your comments.

Cheers,
Chris
Received on Monday, 20 December 2004 17:27:45 GMT

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