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Re: Example of accessible CAPTCHAS that work well

From: Denis Boudreau <dboudreau@accessibiliteweb.com>
Date: Thu, 17 Nov 2011 09:53:45 -0500
To: wai-eo-editors <wai-eo-editors@w3.org>, WAI Interest Group <w3c-wai-ig@w3.org>
Message-id: <C56C6F93-A96D-445D-989E-A209EF0CEE3C@accessibiliteweb.com>
Hi Phil,

Don't mean to start a thread here, but in my opinion, there is no such thing as a best practice working example of accessible Captcha.

Except maybe for some (certainly not all) textCaptchas examples, all captchas are flawed by design and are always inaccessible for some users.

Integrating one would mean using a bad simple captcha image on one site, then another form on the other. 

I feel that that would "compromise" the integrity of the page, because this one element would differ from one example to the other.

In my opinion, the demo should stay away from captchas, as to make sure the W3C does not endorse it's use in either way.

Best,

/Denis


On 2011-11-17, at 9:33 AM, Phill Jenkins wrote:

> Dear WAI-EO editors, 
> 
> Regarding the The W3C WAI Education and Outreach Working Group (EOWG) invitation to comment on:
>     Before and After Demonstration (BAD)
>     http://www.w3.org/WAI/demos/bad/
> 
> It would be good that BAD include a best practice example of CAPTCHAS 
> 
> Regards,
> Phill Jenkins, 
> IBM Research - Human Ability & Accessibility Center
> http://www.linkedin.com/in/philljenkins
> 
> ----- Forwarded by Phill Jenkins/Austin/IBM on 11/17/2011 08:16 AM ----- 
> 
> From:        "Lars Ballieu Christensen" <lbc@sensus.dk> 
> To:        <sec508@trace.wisc.edu> 
> Date:        11/17/2011 08:10 AM 
> Subject:        [SEC508] Examples of accessible CAPTCHAS that work well 
> Sent by:        sec508-admin@trace.wisc.edu 
> 
> 
> 
> Dear all, 
>   
> Greetings. 
>   
> I’m looking for examples of CAPTCHAS that are both accessible from a formal compliance point of view and work well with a multitude of users. Any references are highly appreciated. 
>   
> Kind regards 
>   
> Lars 
> ---- 
> Lars Ballieu Christensen 
> Rådgiver/Adviser, Sensus ApS 
> Specialister i tilgængelighed/Accessibility Consultants 
> Tel: +45 48 22 10 03 – Mobil: +45 40 32 68 23 - Skype: Ballieu
> Mail: lbc@sensus.dk – Web: www.sensus.dk & www.robobraille.org 
>   
> Vi arbejder for et tilgængeligt og rummeligt informationssamfund 
> Working for an accessible and inclusive information society 
>  
Received on Thursday, 17 November 2011 14:54:18 GMT

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