A. Sensitivity analysis is a process of changing key variables to determine the possible change in the optimal solution because of changes in the variables. It is used to define how sensitive the project (sales for example) is to a change in those variables.

B. PERT is a project scheduling technique used to plan and control projects.

C. Linear programming is used to either maximize or minimize some quantity (called the objective function). At the same time, this maximizing or minimizing must be accomplished in the presence of constraints, or restrictions, such as limited quantities of labor or materials. The maximization or minimization must be done without violating any of the constraints.

D. Expected value analysis is used to determine expected return or cost. Expected value is calculated by multiplying each projected outcome by its corresponding probability and adding the products together. In other words, expected value is the weighted average of the probable outcomes.