The In-accessibility of CAPTCHA
Monday, 20 July 2009
Don't you just hate CAPTCHA... "Completely Automated Public Turing test to tell Computers and Humans Apart"? The user experience of using CAPTCHA is terrible, and always a pain. I often get them wrong, and they slow down the browsing experience.
They are also in-accessible.
Recently, I have seen an increase in audio CAPTCHA which is a positive step (at least accessibility is being considered), but an alternative would be better. ..
Here is a detailed spec writing by W3c discussing the possible alternatives to CAPTCHA:
http://www.w3.org/TR/turingtest/
In addition, here is an article from WebAIM discussing the alternatives to 'spam free accessible forms': http://webaim.org/blog/spam_free_accessible_forms/
These articles certainly leave food for thought.
In a future post, I will discuss SAPTCHA (Semi Automatic Public Turing Test to Tell Computers and Humans Apart) which is a proposed solution to the accessibility problems of CAPTCHA.
Let me know if you have any thoughts / comments regarding SAPTCHA, CAPTCHA and it's various alternatives.
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Posted byCharlie M at 04:58
Here are the 'Top 10 Worst Captchas'.... http://www.johnmwillis.com/other/top-10-worst-captchas/