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Critical Path Method
The document defines key project management terms like critical path, total float, free float, and project float. It explains that the critical path is the longest sequence of activities that determines the shortest project duration, and float is the amount of time an activity can be delayed without impacting subsequent activities or the project end date. The document also provides an example critical path diagram and calculations for early start, late start, early finish, late finish, and float.
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Critical Path Method
- 1. Critical Path: The longest duration path through a network diagram and determines the shortest time to complete the project. Float (Slack): Total Float (Slack): The amount of time an activity can be delayed without delaying the project end date or an intermediary milestone. Free Float (Slack) : The amount of time an activity can be delayed without delaying the early start date of its successor(s). Project Float(slack): The amount of time a Project can be delayed without delaying the externally imposed project completion date required by the customer or previously committed by the Project Manager. Critical Path Method
- 2. Forward Pass BackwardPass Float ES: Early Start LS: Late Start EF: Early Finish LF: Late Finish Float= LS-ES Float= EF-LF How to Calculate Float ? ES LS EF LF
- 3. Critical Path ExampleStart Activity 1 Float=0 Activity 2 Float=0 Activity 3 Float=5 Activity 4 Float=0 Activity 5 Float=0 End 0 3 0 3 3 6 3 6 6 14 6 14 14 18 14 18 3 9 8 14 Paths Duration Start, 1, 2, 4,5, End 18 Start, 1, 3, 5, End 13 Activity Duration Activity 1 3 Activity 2 3 Activity 3 6 Activity 4 8 Activity 5 4