- From: Jon Gunderson <jongund@illinois.edu>
- Date: Wed, 18 Feb 2009 11:50:49 -0600 (CST)
- To: "Robert J Burns" <rob@robburns.com>, "Simon Pieters" <simonp@opera.com>
- Cc: "Steven Faulkner" <faulkner.steve@gmail.com>, "Ian Hickson" <ian@hixie.ch>, "HTML WG" <public-html@w3.org>, "Janina Sajka" <janina@rednote.net>, "W3C WAI Protocols & Formats" <w3c-wai-pf@w3.org>, wai-liaison@w3.org
Here is the iCITA best practices rules for accessible tables: http://html.cita.uiuc.edu/nav/dtable/dtable-rules.php The rules help to decide if a table is: 1. Layout table 2. Simple data table 3. Complex data table These rules have been implemented in the RC1 release of the Illinois Functional Accessibility Evaluator: http://faetest.dres.uiuc.edu Jon ---- Original message ---- >Date: Wed, 18 Feb 2009 10:30:51 -0600 >From: Robert J Burns <rob@robburns.com> >Subject: Re: Use and abuse of @summary >To: "Simon Pieters" <simonp@opera.com> >Cc: "Steven Faulkner" <faulkner.steve@gmail.com>, "Ian Hickson" <ian@hixie.ch>, "HTML WG" <public-html@w3.org>, "Janina Sajka" <janina@rednote.net>, "W3C WAI Protocols Formats" <w3c-wai-pf@w3.org>, wai-liaison@w3.org > > HI Simon, > On Feb 18, 2009, at 8:16 AM, Simon Pieters wrote: > > On Wed, 18 Feb 2009 11:20:32 +0100, Steven > Faulkner <faulkner.steve@gmail.com> wrote: > > On digging into philips data a little bit and > measuring its effect upon > > users who's screen reading software provides > access to the information it is > > found that in the overwhelming majority of cases > the incorrect uses of > > @summary are not announced to screan reader > users. Why? Because screen > > reading software (JAWS and Window eyes) that > supports @summary also uses > > heuristics to suppress the announcement of > layout tables to users > > I think it would be useful to specify an algorithm > for deciding whether a table is a layout table or > not -- not just for deciding whether or not to use > summary='' but also e.g. for deciding whether <td> > should be a sectioning root or not. > > I agree. I think it might also be useful to specify > an attribute to allow authors to indicate a layout > table as well (which could then be incorporated into > the algorithm). > Take care, > Rob Jon Gunderson, Ph.D. Coordinator Information Technology Accessibility Disability Resources and Educational Services Rehabilitation Education Center Room 86 1207 S. Oak Street Champaign, Illinois 61821 Voice: (217) 244-5870 WWW: http://www.cita.uiuc.edu/ WWW: https://netfiles.uiuc.edu/jongund/www/
Received on Wednesday, 18 February 2009 17:52:17 UTC