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.$).$

Sketch out the main steps that you would ultimately include in your design process.