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Re: Complex Table Examples

From: Laura Carlson <laura.lee.carlson@gmail.com>
Date: Fri, 1 Jun 2007 13:07:44 -0500
Message-ID: <1c8dbcaa0706011107y6b70a0c7j873ba2f5138d46cd@mail.gmail.com>
To: "HTML WG" <public-html@w3.org>

fyi...

don raikes <don.raikes@oracle.com> wrote: [1]

> Responding to the question of how much headers= is used, Oracle's
> web-based solutions all use the headers= attribute and have since
> roughly 2001/2002.
>
> In fact that has been one of our requirements for making our software
> section 508 compliant.

Also Gez  Lemon wrote a  related blog post  [2] on the  issue. He has
an An Overlaid Table Examplea nd he talks about backwards
compatibility:

> Overlaid and other types of irregular tables are very rare on the
> web, but we still require a mechanism to mark them up correctly.
> Ideally, we could do with something more generic, like the labelledby
> attribute  from WAI-ARIA's state and properties Module , as this
> could be used to describe the associated headers for each cell, label
> for a form control, and so on. There is no mention of a generic
> attribute for labelling objects in the HTML 5 global attributes .
> Also, backwards compatibility is a concern for the HTML 5 working
> group, as they include a font element  for backwards compatibility
> with older WYSIWYG editors.
>
> The font element is purely presentational - if it wasn't supported,
> the worst thing that would happen in a user agent is that the text
> would be displayed without the presentational information. It doesn't
> create an accessibility barrier in the same way that removing
> something as vital for comprehension as the headers attribute would.
>
> There is no doubt that we require something that allows irregular
> data tables to be marked up so that they are understandable by
> assistive technology, and this is something that the headers
> attribute does adequately right now. I would love to see something
> more generic introduced that would also work in other areas or rich
> internet applications, like WAI-ARIA's labelledby attribute, but at
> the same time, we need to ensure whatever is proposed doesn't break
> the web. W3C technologies should be built considering accessibility
> from the ground up. I do hope that the HTML Working Group
> participants change their stance on this issue and consider keeping
> the headers attribute, as we definitely need it to support
> accessibility.

Laura

 [1] http://lists.w3.org/Archives/Public/wai-xtech/2007May/0072.html
 [2] http://juicystudio.com/article/html-scope-headers-debate.php
-- 
Laura L. Carlson
http://www.d.umn.edu/goto/webdesign/
Received on Friday, 1 June 2007 18:07:49 UTC

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