Victor Lombard writes about the downfall of Google Wave…

I think of it this way: if we only test bottle openers, we may never realize customers prefer screw-top bottles. That’s what Buxton means by getting the right design.

A classic interface design guideline is that any object that looks familiar should behave in a familiar way. Waves looked like e-mails and documents but didn’t act like either of them.

From uxmag.com/articles/book-excerpt-why-we-fail found by @craigmdennis.