W3C home > Mailing lists > Public > w3c-wai-ig@w3.org > October to December 2002

Re: LONGDESC

From: Charles McCathieNevile <charles@w3.org>
Date: Sat, 19 Oct 2002 17:22:42 -0400 (EDT)
To: David Poehlman <poehlman1@comcast.net>
cc: Aaron Smith <aaron@gwmicro.com>, <jim@jimthatcher.com>, <w3c-wai-ig@w3.org>
Message-ID: <Pine.LNX.4.30.0210191719540.19105-100000@tux.w3.org>

Hmm. A screen-reader sould make the user interface available, and the user
interface should tell you there is a description available. (Mozilla, iCab,
perhaps others do this already for all users. I think IE makes it available
to screen readers but don't know if it is accessible through the standard
user interface - which is a mistake).

The use case: A low vision user may have difficulty making out the image and
want some verbal or written explanation to go with it. Ditto for someone with
cognitive disabilities that affect visual interpretation. And ditto for
navigation bars made up of icons I don't recognise...

cheers

chaals

On Sat, 19 Oct 2002, David Poehlman wrote:

>
>no.  the ua cannot do it all which is why we have msaa for the screen
>readers/assistive user agents to take advantage of.  We need to be more
>pro active if we are going to win this fight.
>
>----- Original Message -----
>From: "Aaron Smith" <aaron@gwmicro.com>
>To: <jim@jimthatcher.com>; <w3c-wai-ig@w3.org>
>Sent: Friday, October 18, 2002 4:34 PM
>Subject: RE: LONGDESC
>
>
>Thanks, Jim and Phil.
>
>One of the reasons that a screen reader would not want to do what you
>described below is because, in the utopian sense of the word, a screen
>reader simply reads what is rendered on the screen, and does not perform
>any rendering itself.
>
>In my personal opinion/question, that should be up to the UA as this
>feature is not only helpful to screen reader users but users of
>non-visual
>browsers, right?
>
>Aaron
>
>At 03:06 PM 10/18/2002 -0500, Jim Thatcher wrote:
>
>
>>Hi Arron,
>>
>>It is up to you, i.e., to the assistive technology! For example, Home
>Page
>>Reader renders a link "Long Description" next to the image with
>>href="graph1.htm" from your example. I would think that would make
>sense for
>>a screen reader too.
>>
>>Jim
>>Accessibility Consulting
>>http://jimthatcher.com
>>512-306-0931
>>508 Web accessibility Tutorial: http://jimthatcher.com/webcourse1.htm
>>
>>
>>-----Original Message-----
>>From: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org]On
>>Behalf Of Aaron Smith
>>Sent: Friday, October 18, 2002 2:42 PM
>>To: w3c-wai-ig@w3.org
>>Subject: LONGDESC
>>
>>
>>I find myself suddenly confused about the LONGDESC attribute. According
>to
>>http://www.w3.org/WAI/wcag-curric/sam3-0.htm, the LONGDESC attribute
>>resides in an image tag such as the following:
>>
>><IMG SRC="graph1.gif" LONGDESC="graph1.htm" ALT="3-d sales chart.">
>>
>>But when is access to graph1.htm presented to the user? Is this IMG
>>supposed to be a link to graph1.htm? Is the UA supposed to render a D
>link
>>to the LONGDESC URI immediately following the IMG object? Is an AT
>supposed
>>to simply announce the URI? I assume that the average user isn't
>supposed
>>to view the source, copy the URI. and paste it into the address edit
>box
>>just to find the LONGDESC text, right?
>>
>>Can someone educate me?
>>
>>Thanks,
>>
>>--
>>To insure that you receive proper support, please include all
>>past correspondence (where applicable), and any relevant
>>information pertinent to your situation when submitting a
>>problem report to the GW Micro Technical Support Team.
>>
>>Aaron Smith
>>GW Micro
>>Phone: 260/489-3671
>>Fax: 260/489-2608
>>WWW: http://www.gwmicro.com
>>FTP: ftp://ftp.gwmicro.com
>>Technical Support & Web Development
>
>--
>To insure that you receive proper support, please include all
>past correspondence (where applicable), and any relevant
>information pertinent to your situation when submitting a
>problem report to the GW Micro Technical Support Team.
>
>Aaron Smith
>GW Micro
>Phone: 260/489-3671
>Fax: 260/489-2608
>WWW: http://www.gwmicro.com
>FTP: ftp://ftp.gwmicro.com
>Technical Support & Web Development
>
>

-- 
Charles McCathieNevile  http://www.w3.org/People/Charles  tel: +61 409 134 136
SWAD-E http://www.w3.org/2001/sw/Europe ------------ WAI http://www.w3.org/WAI
 21 Mitchell street, FOOTSCRAY Vic 3011, Australia  fax(fr): +33 4 92 38 78 22
 W3C, 2004 Route des Lucioles, 06902 Sophia Antipolis Cedex, France
Received on Saturday, 19 October 2002 17:22:45 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Tuesday, 19 July 2011 18:14:07 GMT