Which of the following team roles would be most appropriate to enhance the team and why?

Acceptance test cases are based on what?

Refer to the exhibit
The following test cases need to be run, but time is limited, and it is possible that not all will be completed before the end of the test window

The first activity is to run any re-tests, followed by the regression test script. Users have supplied their priority order to tests.
Which of the following gives an appropriate test execution schedule, taking account of the prioritisation and other constraints? [K3]

System testing is:

Which of the following does NOT represent one of the three triggers for maintenance testing an operational system?