What Is Usability? Links
The value of usability:
“The $300 million button,” by Jared Spool
“ROI Calculator,” by Human Factors International
“Government Usability Case Studies,” DigitalGov.Gov
What is usability? Read these definitions:
“What Does Usability Mean? Looking Beyond ‘ease of use,'” by Whitney Quesenbery
“Usability 101” from a founder of usability, Jakob Nielsen
“Using the 5Es to Understand Users,” by Whitney Quesenbery, again – I love her Es!
Comparing designs? Read:
“Define Stronger A/B Testing through UX Research”
“Success Rate Assessment,” which has a good explanation and graphics showing how usability testing can help set design goals