A PERT diagram is a network schedule showing activities, dependencies and estimated durations. It helps identify the critical path and assess uncertainty in project completion time.
How to use this tool
Identify the activities
Identify the activities needed to complete the work.
Estimate durations and dependencies
Estimate durations and dependencies.
Find the critical path
Build the network and identify the critical path.
Review and update
Review uncertainty and update the schedule as work progresses.
References & further reading
Malcolm, D. G., Roseboom, J. H., Clark, C. E. and Fazar, W. (1959). “Application of a Technique for Research and Development Program Evaluation.” Operations Research, 7(5), 646–669.