W3C home > Mailing lists > Public > w3c-wai-gl@w3.org > October to December 2003

Re: Captcha and inaccessiblity

From: Charles McCathieNevile <charles@w3.org>
Date: Sat, 18 Oct 2003 10:33:27 -0400 (EDT)
To: Tom Croucher <tcroucher@netalleynetworks.com>
Cc: w3c-wai-gl@w3.org
Message-ID: <Pine.LNX.4.55.0310181028100.16455@homer.w3.org>

On Sat, 18 Oct 2003, Tom Croucher wrote:

>The other obvious way to go would be audio, so generate a word in an audio
>format or some other sound. So, "What animal makes this sound?" stuff like
>that. Which is almost inevitabley easier than finding a way to generate
>textual questions which are understandable enough to humans, but obscure
>enough to Natural Language Processors and Cognitive engines, without being
>so long and convulted they are obnoxious to use.

well, for people who are Deaf I can see a minor difficulty here...

>Some vague thoughts and possible solutions. I would love to hear ideas
>people have on ways we could make this work without the currently
>inaccessible images. I think we should insist that if people must use image
>Captcha they either also provide audio ones or a phone number that people
>can use to a bypass code.

People who use an image and don't provide an alternative functionality
already fail to meet the guidelines. People who rely on an audio or an image
are doing better - I don't think the guidelines requirements as they are
would pick that up, although it would fail WCAG 1 by not being device
independent - it relies on either image presentation or audio presentation,
and again there are a group of people who won't win...


Received on Saturday, 18 October 2003 10:33:31 UTC

This archive was generated by hypermail 2.3.1 : Tuesday, 16 January 2018 15:33:46 UTC