[SATLUG] Seeking robot immunity in my feedback form

[Brad Knowles]

At 9:47 PM -0600 2/2/07, Thomas King wrote:

>  Google for 'captcha'.

Google for "captcha considered harmful".  It leads to the blog at 
<http://www.tkachenko.com/blog/archives/000537.html>, which links to 
a W3C Working Group note:

November 29, 2005
W3C: CAPTCHA considered harmful
W3C warns that using CAPTCHA on the Web is actually bad idea as it 
poses problems for those who are blind, have low vision or have a 
learning disability such as dyslexia. That makes sense.
2005-11-23: The WAI Protocols and Formats Working Group has released 
Inaccessibility of CAPTCHA: Alternatives to Visual Turing Tests on 
the Web (see <http://www.w3.org/TR/2005/NOTE-turingtest-20051123/>) 
as a Working Group Note. Requests for visual verification of a 
bitmapped image pose problems for those who are blind, have low 
vision or have a learning disability such as dyslexia. The note 
examines ways for systems to test for human users while preserving 
access for users with disabilities. Read about the Web Accessibility 
Initiative (see <http://www.w3.org/WAI/>).

-- 
Brad Knowles <brad at shub-internet.org>, Consultant & Author
Co-author of SAGE Booklet #15 "Internet Postmaster: Duties and 
Responsibilities"
Founding Member and Platinum Individual Sponsor of LOPSA: 
<http://www.lopsa.org>
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