Usability testing is a method used to observe and interview users of the target group in order to test whether a product isusable. During the test participants are asked to interact with the test product and verbalize theirthoughts (think-aloud method) while carrying out typical tasks. Moderator, minute taker and possibly other stakeholders are observing the test. After a certain number of test sessions, the experts discuss the test findings and their first suggestions for improvement on the basis of the participants’ observations and statements.

Find a more detailed description of the method here: Usability Testing