Constantine on the Magic Number 5 panel at CHI

At Usability News Larry Constantine gives a great rundown of the Magic Number 5 panel from CHI. The panel tackled the long accepted discount usability notion that 5 users will uncover 80% of the defects.

Usability testing seems to be the perceived gold standard for sites - one colleague called it the 'holy grail'. But as the panel showed, 5 users and the discount approach have some serious drawbacks.

I also find it pretty amusing that usability diehard Rolf Molich is suggesting a potential end for usability testing, while Cooper (who has long dismissed usability testing) now offers training and courses in same.

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look it up

http://www.bartleby.com/cgi-bin/texis/webinator/sitesearch?FILTER=&query=effusive&x=7&y=10

design patterns

I wish I was at the conference...Judging from Rolf's comments as mentioned in the article, that robust design could mean that design patterns could reduce need for usability testing to uncover flaws...