Re: suggestions for new roles and properties in ARIA next

Hi Mario,

Thanks for your reply.

> I am blind myself and active in the area of education, so I know best
> the immense meaning and benefit of having a structured alternative for
> images.

A number [1] of specific use cases exist.

> But, because a long description is nothing external,

Some of the use cases require that the description be external to the
document  for instance the facilitating etext image descriptions,
describing a logo, describing an email banner, and describing
illustrations scenarios.

These use cases [2]  all point to the longdesc attribute as being the
most efficient and appropriate choice, and further the only choice to
meet identified constraints and functional requirements. For an
explanation of use case elements including constraints and scenarios
please consult the use case key [3].

Best Regards,
Laura

[1] http://www.d.umn.edu/~lcarlson/research/ld.html#uclist
[2] http://www.d.umn.edu/~lcarlson/research/ld.html#uc
[3] http://www.d.umn.edu/~lcarlson/research/usecasekey.html

Best Regards,
Laura

On 4/22/11, Mario Batusic <Mario.Batusic@jku.at> wrote:
> I am blind myself and active in the area of education, so I know best
> the immense meaning and benefit of having a structured alternative for
> images. But, because a long description is nothing external, there would
> be a better technical possibility:
> img element could be seen as a shortcut for object element with a
> specific media attribute. Now, object element offers the possibility to
> put a complete structured alternative in its content between <object>
> and </object> It would be the easiest way to allow the same also fot the
> long descriptions of img element contnets to put it between <img> and
> </img> The only change would be for img to allow the full block mode
> elements.
> Ciao     Mario
>
> --
> ________________________________________________
> Mag. Mario Batusic
> INTEGRIERT STUDIEREN / INTEGRATED STUDY
> Universität Linz / University of Linz
> Altenbergerstrasse 69, 4040 Linz, Austria
> Tel.: +43/732/2468/1276, Fax: -/9322
> http://www.integriert-studieren.jku.at
>
>
>>>> Laura Carlson <laura.lee.carlson@gmail.com> schrieb am 22.04.11 um
> 03:11 in
> Nachricht <BANLkTinTgfXVr1VzL_C+wapSefgA7RdEaw@mail.gmail.com>:
>> Hi Sailesh,
>>
>>> Longdesc is meant for non visual access to info that is redundant
> for
>>> sighted users.
>>
>> We have tried to explain this in the HTML5 change proposal to
>> reinstate longdesc into HTML:
>> http://www.w3.org/html/wg/wiki/ChangeProposals/InstateLongdesc
>>
>> If anyone has suggestions to improve this proposal please let me
> know.
>> All comments are welcome.
>>
>>> So is it worth the
>>> trouble of defining something new and then hoping user agents will
> implement
>>> it?
>>
>> A concern has also been articulated regarding authoring tools:
>>
>> "Authoring tool vendors are likely to find it difficult (or even
>> impossible) to build user-friendly interfaces that use the
>> aria-describedby feature. This is likely to result in confusion and
>> little use of the feature." - Vlad Alexander, XStandard authoring
> tool
>> vendor, April, 20, 2011.
>> http://rebuildingtheweb.com/en/longdesc-replacement/#c20110420144040
>
>>
>> Best Regards,
>> Laura
>>
>> --
>> Laura L. Carlson
>


-- 
Laura L. Carlson

Received on Friday, 22 April 2011 12:18:45 UTC