Justify an optimal solution to the design problem.

Justification should include

•    explaining the meaning of the term optimal solution 
•    comparing all known aspects of the proposed solutions
•    explaining reasons one solution may be the best
•    explaining how a decision matrix is used to choose the optimal solution.

Process/Skill Questions:

•    What are trade-offs?
•    How do trade-offs affect the decision-making process?
•    How can the optimal solution among multiple solutions be determined?
•    Why is selecting the optimal solution not a guarantee of success in solving the design problem?