Usability testing is a method used to observe and interviewusers of the target group in order to test whether a product isusable. During the testparticipantsare asked to interact with the test product and verbalize theirthoughts (think-aloud method) while carrying out typical tasks. Moderator and minute taker areobserving the test. After a certain number of test sessions theexperts discuss the test findings and their first suggestions forimprovement on the basis of the participants’ observations andstatements.
Find a more detailed description of the method here:Usability Test