Question One:
Why is it important to understand tradeoffs between usability measures for various
kinds of systems?  Explain by describing usability motivations for Industrial systems
and Life Critical systems.
Question Two:
Usability testing is a significant aspect for effective interface development. List and
briefly describe any four methods of usability testing.
N.B. The question asks about methods of usability testing not tools used in usability
testing (surveys are an example of tools).
Question Three:
Let’s suppose that you have in charge the task of developing interfaces for an
interactive system (website, mobile application, etc.).