2.3 Critical Path Method (CPM)


• Tasks (possibly from a Gannt chart) can be put in a network diagram.


• Earliest Start (ES) the earliest time a task can start.


• Minimum Project Duration - the shortest time to complete the project based upon the longest path.


• Desired Project Duration - the planned time for completing the project.


• Latest Start (LS) - the latest a task can start for a Desired Project Duration.


• Total Float (TF) = LS - ES


• Critical Path - the sequence of tasks that take the longest, and dictate the Minimum Project Duration.