Chiwah, It's useful to make a distinction between scenario and task if you associate not only goals with the scenario but also "fit"--fit with the user's goal/s, context, and desires.
At the task level it can be appropriate to figure out whether people are able to do X and it's easy to think of quantitative measures to capture their ability to do X. At the scenario level, which is in most cases a million times more important, quantitative measures are more of a stretch. You can ask people to rate things on a Likert scale, of course, but the richness comes from the qualitative data. Better to have your team observing than to try to translate findings into something quantitative. Marijke ________________________________________________________________ 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
