The original difference between CPM and PERT was that
A)CPM was based on the Gantt Chart and PERT wasn't
B)CPM used single activity time estimates while PERT used multiple time estimates
C)CPM used the AOA network convention while PERT used AON
D)there was no difference

Question

Quizplus · Accepted Answer

The original difference between CPM (Critical Path Method) and PERT (Program Evaluation and Review Technique) is that CPM used single activity time estimates, assuming each task duration is known and constant, while PERT used multiple time estimates (optimistic, most likely, and pessimistic) to account for uncertainty in task durations.

The Original Difference Between CPM and PERT Was That