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Re: reCAPTCHA implementation problems

From: Gez Lemon <gez.lemon@gmail.com>
Date: Sat, 14 Jul 2007 13:36:16 +0100
Message-ID: <e2a28a920707140536h54dd7b70yf4d64fd71361cf20@mail.gmail.com>
To: "Ben Maurer" <bmaurer@andrew.cmu.edu>
Cc: wai-xtech@w3.org, "Colin McMillen" <mcmillen@cs.cmu.edu>

Hi Ben,

On 14/07/07, Ben Maurer <bmaurer@andrew.cmu.edu> wrote:
<quote>
The users whose experience I think we are degrading are "casual" keyboard
 users, users who use tab to complete a multi form element.

Again, consider the wordpress form:

Name _____________________
Email ________________
Website _________________
Comment _______________________
         _________________________

CAPTCHA

  Your solution ___________  [refresh] [audio] [help]

 [submit]
</quote>

Keyboard users are likely to press return and use a browser's
autosubmit feature, rather than continue tabbing to the submit button.

Ben wrote:
<quote>
I want the tab focus to be Name -> Email -> Website -> Coment -> Captcha
Solution -> submit. If I need to press one of the three side buttons *I*
use an out-of-band mechinism (the mouse)
</quote>

I'm sorry to keep harping back to this point, but it's impossible to
get away from the fact that that makes this approach inaccessible.

Ben wrote:
<quote>
It's probably worth doing some user studies on people if we do decide we
need to change the tab order. We need to make sure that we're not making a
change that causes unexpected behavior for a large portion of our user
base.
</quote>

That's an excellent idea, as I'm convinced your assumption is
incorrect about keyboard users. Be sure to include people with a
variety of disabilities in your user tests.

I wish you well with this project, Ben, and hope you are able to come
up with something that is truly accessible (or at least as far as that
is possible by distinguishing humans by their ability to perform a
task).

Cheers,

Gez


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Received on Saturday, 14 July 2007 12:36:23 GMT

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