Usability

A usability evaluation is conducted to determine the extent to which a system is easy to use or "user friendly."

Simulation is a form of (usability) evaluation in which realistic cases are created and the participant is provided direction on the use of the system or task.

A cognitive walkthrough provides a means of gathering user input in the design of a system, based on the premise that most users prefer to learn by doing rather than read a user manual.

Heuristic evaluations are a form of usability evaluation in which various accepted principles of design are applied to the system being assessed.