Which of the following activities are part of the Acting phase of a test improvement...

In the Acting phase of the IDEAL model, the focus is on the implementation of the proposed solutions. Activities such as refining the solution and implementing the solution are key components of this phase. These actions are based on the plan developed in the earlier phases, and they are designed to apply the solutions to achieve the desired improvements. Specifically:

Refine solutions (i) refers to improving or adjusting the solution based on feedback from pilots or initial tests.

Implement Solution (iii) refers to the full implementation of the refined solution across the test process or organisation​​.