1. Identify the strengths and weaknesses of an ABAB design and describe the circumstances in which it should or should not be used. 2. Explain the circumstances in which an ABAB design should be...

1. Identify the strengths and weaknesses of an ABAB design and describe the circumstances in which it should or should not be used.

2. Explain the circumstances in which an ABAB design should be modified to create a more complex phase-change design and identify some options for the modification.