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RE: Example of accessible CAPTCHAS that work well

From: Vivienne CONWAY <v.conway@ecu.edu.au>
Date: Fri, 18 Nov 2011 08:50:00 +0800
To: Ginger Claassen <ginger.claassen@gmx.de>, "accessys@smart.net" <accessys@smart.net>
CC: Denis Boudreau <dboudreau@accessibiliteweb.com>, wai-eo-editors <wai-eo-editors@w3.org>, WAI Interest Group <w3c-wai-ig@w3.org>
Message-ID: <8AFA77741B11DB47B24131F1E38227A9914FAED437@XCHG-MS1.ads.ecu.edu.au>
HI Ginger and all

I have also seen the simple math ones, but that does assume 1) English ability, 2) cognitive ability.  I've also seen one that asks for # of digits of the phone number, or the whole thing.  However then people wonder about spaces, area codes and so on.


Vivienne L. Conway, B.IT(Hons)
PhD Candidate & Sessional Lecturer, Edith Cowan University, Perth, W.A.
Director, Web Key IT Pty Ltd.
Mob: 0415 383 673

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From: Ginger Claassen [ginger.claassen@gmx.de]
Sent: Friday, 18 November 2011 1:12 AM
To: accessys@smart.net
Cc: Denis Boudreau; wai-eo-editors; WAI Interest Group
Subject: Re: Example of accessible CAPTCHAS that work well

Dear all,

Regarding accessible CAPTCHAS I found a very few so far where one has to
solve a very simple mathmatical question e.g. How much is 3 + 4?
In my opinion that is quite accessible or do I oversee something here?



On 17.11.2011 16:38, accessys@smart.net wrote:
> have to agree, I have yet to find a CAPTCHAS that I have not had trouble
> with. and the "accessible" workarounds that some "Claim" to be compliant
> are either so clunky or so complex as to be worthless..
> more than one site I have used and as soon as I run accross the Captchas
> I just close the site and go somewhere else. I understand the purpose of
> these things and apparently they are actually being used to help
> transcribe documents but they are far more trouble than they are worth.
> just my two pence
> Bob
> On Thu, 17 Nov 2011, Denis Boudreau wrote:
>> Date: Thu, 17 Nov 2011 09:53:45 -0500
>> From: Denis Boudreau <dboudreau@accessibiliteweb.com>
>> To: wai-eo-editors <wai-eo-editors@w3.org>,
>> WAI Interest Group <w3c-wai-ig@w3.org>
>> Subject: Re: Example of accessible CAPTCHAS that work well
>> Resent-Date: Thu, 17 Nov 2011 14:54:19 +0000
>> Resent-From: w3c-wai-ig@w3.org
>> 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
>>> R�dgiver/Adviser, Sensus ApS
>>> Specialister i tilg�ngelighed/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 tilg�ngeligt og rummeligt informationssamfund
>>> Working for an accessible and inclusive information society

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Received on Friday, 18 November 2011 00:51:51 UTC

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