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Re: Investigating the proposed alt attribute recommendations in HTML 5

From: Steve Faulkner <sfaulkner@paciellogroup.com>
Date: Thu, 30 Aug 2007 10:54:03 +0100
Message-ID: <55687cf80708300254k2721cf6crc77d3c9d7825cc9f@mail.gmail.com>
To: "Maciej Stachowiak" <mjs@apple.com>
Cc: HTMLWG <public-html@w3.org>, wai-xtech@w3.org
Hi Maciej

 Because of the different support provided by AT the safest bet would be, if
the image is the sole content of a link,  a description of the links target
page, not a description of the image. for example:

<img alt="Sgt.Pepper and Robinone Individual Photo Page">

This way if the image/link combination is accessed out of the context  of
the implicitly associated title text (e.g. if the user tabs through the
links or uses the G key - in JAWS to navigate through images or uses the
JAWS link list functionality) the user will be provided with useful
information about the link target.

I think the main point is, that the omission of the alt attribute in any of
the examples provided is not the answer.

On 30/08/2007, Maciej Stachowiak <mjs@apple.com> wrote:

>  On Aug 30, 2007, at 1:26 AM, Steve Faulkner wrote:
>  Maciej wrote:
> >It looks like the flickr page you tested is a search, which doesn't
> include the title or caption. What about a page like this (I found it from
> the >example you used), where the titles are included, and are duplicated by
> the alt text:
> >http://www.flickr.com/photos/11994078@N04/
> If we look at the page you provided, we still have the same issue, a
> choice between a duplicate text title being announced for each image when
> the page is read using
> case 1 - user uses The JAWS read all command:
> For a text, & alt pair the screen reader would announce
> with the title repeated as the alt
> "Sgt.Pepper and Robinone
> Link Graphic Sgt.Pepper and Robinone "
> with no alt attribute
>  "Sgt.Pepper and Robinone
>   Link Graphic  slash one billion two hundred thirty-seven million eight
> hundred seventy-four thousand two hundred ninety-three underline eight
> dfcdzerocbfe underline t.jpg"
> which is preferable?
> if a null alt text is used (alt="")
> the result is the same as for no alt attribute, because the image is the
> sole content of the link.
> It sounds like JAWS doesn't give any way to get ideal behavior in this
> situation (which I would imagine to be to say "Sgt.Pepper and Robinone
> Link Graphic". Can we come up with some markup that would indicate this is
> the desired treatment but still have reasonable fallback in JAWS?
> Maybe the best one could do is to include some generic text to avoid
> repetition:
> <h4>Sgt.Pepper and Robinone</h4>
> <a href="...">
> <img alt="this photo" src="!@37874293_8dfcdzerocbfe_t.jpg">
> </a>
> Regards,
> Maciej

with regards

Steve Faulkner
Technical Director - TPG Europe
Director - Web Accessibility Tools Consortium

www.paciellogroup.com | www.wat-c.org
Web Accessibility Toolbar -
Received on Thursday, 30 August 2007 09:54:09 UTC

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