The main difference between PERT and CPM is that:
A) PERT is more accurate than CPM.
B) PERT assumes that activity durations are known.
C) PERT ignores activity costs.
D) CPM assumes activity durations can vary.
E) PERT employs three time estimates for each activity.

Question

Quizplus · Accepted Answer

PERT (Program Evaluation and Review Technique) employs three time estimates for each activity (optimistic, most likely, and pessimistic) to account for uncertainty in activity durations, unlike CPM (Critical Path Method), which typically uses a single, deterministic time estimate for each activity.

The Main Difference Between PERT and CPM Is That