Beyond Usability Testing
http://infocentre.frontend.com/infocentre/articles/beyondusabilitytesting.html

Farrell, Tom
Frontend Infocentre
2001

Abstract:

Usability testing is a powerful tool in identifying problems and issues that users may have with a website or software application. But for all its benefits, traditional testing does not necessarily give a complete picture at how effective a site or application is in terms of meeting business goals.