Usability testing is a technique used to evaluate a product by testing it on users. This can be seen as an irreplaceable usability practice, since it gives direct input on how real users use the system. This is in contrast with usability inspection methods where experts use different methods to evaluate a user interface without involving users.

httpv://www.youtube.com/watch?v=T432-Q_CYN4

Separating design team and the test team sometimes helps in getting the more honest and unbiased results. Lot of designers associate there “self” with the design and sometimes try to get positive results by “framing” usability tests.

Usability tests are about users and not designers!