“Many of the most compelling usability test insights come not from the elements that are evaluated, but rather those not evaluated… The unintended conclusions—the peripheral insights—are often what feed a designer’s instincts most.” – Robert Hoekman Jr.

Read more in Robert’s article “The Myth of Usability Testing.”

1. Focus on understanding the behavior and performance of people using a design
2. Usability testing is a means of understanding the goodness of a design’s fit to the intended users’ problems
3. The hygiene factor of usability
4. Findability precedes usability. You can’t use what you can’t find.
5. Make it easy for customers to perform useful tasks