What are CPM and PERT, and what are the differences between them?

Question

Accepted Answer

CPM and PERT are project management techniques used to plan and schedule tasks.

CPM stands for Critical Path Method and PERT stands for Program Evaluation and Review Technique.
CPM is used for projects with known activity times, while PERT is used for projects with uncertain activity times.
CPM uses a single time estimate for each activity, while PERT uses three time estimates (optimistic, pessimistic, and most likely) to calculate expected activity times.
CPM focuses on identifying the critical path, while PERT focuses on identifying the probability of completing the project by a certain date.
Both techniques use network diagrams to visualize the project schedule and identify dependencies between tasks.

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