The Critical Path Method (CPM) is used to estimate the minimum project duration and determine the amount of scheduling flexibility on the logical network paths within the schedule model.
Definition of Critical Path: According to PMI, the critical path is the longest sequence of activities through a project network diagram that determines the shortest possible project duration.
Total Float: Activities on the critical path have zero total float. Any delay in a critical path activity will delay the project finish date.
Calculation Steps:
Identify all possible paths from the start node (A) to the finish node (I).
Sum the durations of the activities along each specific path.
The path with the highest numerical total is the Critical Path.
How to solve this specific question:
Path A: A + B + C + F + G + I
Path B: A + B + C + F + H + I
Path C: A + D + E + F + G + I
Path D: A + D + E + F + H + I
To verify the answer, simply add the numbers associated with each letter in your diagram. The option (A, B, C, or D) that results in the largest sum is the verified critical path.
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