An important consideration for test managers is how to integrate usability tests into the software development lifecycle.
A common mistake is to wait until all functional tests are complete prior to starting usability tests, which can result in the late discovery of critical usability defects.
The usability test is the main pain for many mobile projects if usability risks ahead,
the test manager should plan for:
Summative usability tests:
– Reviews of user interface specification and wireframes during system design.
– Evaluate the low fidelity prototypes
Formative usability tests:
– Test the actual implementation.
This is can be quite effective at identifying usability defects that would create significant schedule problems if discovered toward the end of system testing.