WebAIM - Web Accessibility In Mind

E-mail List Archives

Re:

for

From: Alastair Campbell
Date: Mar 15, 2007 3:30AM

Tedd wrote:
> I would be interested in your opinion, and others, of this captcha.
> http://sperling.com/examples/captcha/index.php

And for those who can't hear?

I'm not a fan of CAPCHA's, but as someone who is on the receiving end of
a truckload of spam, I understand the need.

Longer term, I think there are two main possible solutions:

1. Using OpenID with a supplier who will also provide the 'trust'
element.

For those that haven't tried it, OpenID is a distrubute mechanism for
providing a single sign-on.
(http://simonwillison.net/2006/openid-screencast/)

OpenID is good for the user (only needing one set of log-in details),
but doesn't do much for the web site owner, as anyone can create and use
an OpenID, including spammers.
However, if certain suppliers of OpenID provided a trust mechanism (i.e.
check the validity of the people), you could allow comments/logins from
people using those suppliers.
In this way you would only have to complete a CAPTCHA once for all your
accounts, and the supplier (e.g. Yahoo or Microsoft) could provide
alternative mechanisms such as phoning up.

2. A social networking web service, as suggested by Gez Lemon:
http://juicystudio.com/article/accessibility-of-captcha.php#socialnetwor
k

These two methods aren't mutually exclusive, you could have the account
with a supplier and enter a social network using it.

Kind regards,

-Alastair

--
Alastair Campbell | Director of User Experience

Nomensa Email Disclaimer:
http://www.nomensa.com/email-disclaimer.html