I've done lots of usability testing and although I find the idea
interesting, it's also flawed at its core:

- The testing protocol is missing since users roam at will through
the web site. And you can't adjust testing on the fly when you
notice that they're having trouble with a particular task. 

- You can't ask them important questions like "what did you think
you could do by clicking on that" when the prototype isn't fully
functioning.

- You can't see their expressions of surprise and frustration.

- It would be very hard to compile several of this videos findings
into a consistent document and worst of all you couldn't gather
quantitative results.

Having said that, this is more like a one-off focus group session
than usability testing.


. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Posted from the new ixda.org
http://gamma.ixda.org/discuss?post=23315


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