Re: ASCII Captcha

From:	Eric Gorr	Date:	Fri, 29 Aug 2008 19:27:00 +0000
Subject:	Re: ASCII Captcha
References:	1 2 3 4 5 6 7 8 9 10	Groups:	php.general
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On Aug 29, 2008, at 3:15 PM, tedd wrote:

At 2:51 PM -0400 8/29/08, Eric Gorr wrote:
On Aug 29, 2008, at 1:56 PM, tedd wrote:
At 12:17 PM -0400 8/29/08, Eric Gorr wrote:
On Aug 29, 2008, at 11:33 AM, tedd wrote:
I understand there are different reasons behind the use of CAPTCHA's, but in the end they still present accessibility problems. And their use is a trade-off that you accept.
Nonsense. There is no reason why the usage of Captcha's would need to present accessibility problems.
No offense, but please look into it.
You are welcome to explain, rather then just assert, what is inherent about the concept of a Captcha that would force accessibility problems upon a website.
Read your own reference: http://en.wikipedia.org/wiki/Captcha That says: Accessibility See also: Web accessibility Because CAPTCHAs rely on visual perception, users unable to view a CAPTCHA (for example, due to a disability or because it is difficult to read) will be unable to perform the task protected by a CAPTCHA. As such, sites implementing CAPTCHAs may provide an audio version of the CAPTCHA in addition to the visual method. The official CAPTCHA site recommends providing an audio CAPTCHA for accessibility reasons. Why should I have to explain something that is widely known and easy to find?

So, I'm curious, what prevents a website from providing a good implementation of both an audio and visual captcha to prevent accessibility problems which you claim are impossible to avoid with every use of a captcha? Personally, my favorite implementation to date is: http://recaptcha.net/learnmore.html and not only is it well designed, but all that brain power which goes into solving captcha's goes into helping out with a very worthwhile project. Remember, the concept of a captcha is this: A test to prove one is human in order perform some action. There is no reason why a blind or deaf person absolutely cannot be presented with such a test. Now, if you wish to continue to argue to the contrary, you are more then welcome to do so.