Here is how I think of it, Jeff. Usability is a dimension of design. I like the construct of useful, usable and desirable which you can think of as three dimensions that a good design requires.
Each of these dimensions has associated with it various tool and techniques. Usability testing is a technique that can be used to assess (some aspects of) usability. Other techniques like persona development also contribute to usability. For me, this makes it all pretty simple. A good design must be usable. But usability is not the only characteristic of a good design. Charlie ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [EMAIL PROTECTED] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help