Usability Testing

Usability testing, the focus of this book, employs techniques to collect empirical data while observing representative end users using the product to perform realistic tasks. Testing is roughly divided into two main approaches. The firs approach involves formal tests conducted as true experiments, in order o confirm or refute specific hypotheses. The second approach, a Jess formal but still rigorous one (and the one we emphasize in this book), employs an iterative cycle of tests intended to expose usability deficiencies and gradually shape or mold the product in question.