A. A requirement on the usability of a component or system

B. A requirement needed to define the size of a mobile phone used in a usability test

C. A requirement needed for a usability tester

D. A requirement how to conduct a usability test

A. A public place, such as a cafe.

B. A room where no action of the user can be seen or recorded by any means.

C. Two office rooms that are connected by a video link.

D. A room at the place where the test participant lives or works.

A. Testing is informal and many potential users can be accessed

B. Testing happens on a regular basis, e.g. each Monday

C. Testing is quantitative

D. Testing focuses on instant redesigns and confirming made changes

A. Create a survey plan

B. Write a usability test plan

C. Log usability problems

D. Define testing tasks