Questions and Answers
What is the main objective of PERT analysis in project management?
To evaluate the three time estimates of an activity
Which of the following is a characteristic of the Critical Path Method (CPM)?
It focuses on the critical activities in a project
What is the formula to calculate the expected time estimate of an activity in PERT analysis?
te = (to + 4tm + tp) / 3
Which activity has the highest expected time estimate in the given project?
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What is the purpose of creating a network diagram in project management?
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Which of the following is a limitation of the CPM method?
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What is the difference between the PERT and CPM methods?
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Which activity has the lowest expected time estimate in the given project?
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What is the purpose of estimating activity times in project management?
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Which of the following is a benefit of using the PERT method?
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Study Notes
Time Estimates
- Three time estimates are used to calculate the time estimate (te) for each activity: optimistic time estimate (to), most likely time estimate (tm), and pessimistic time estimate (tp).
Formula for Time Estimate (te)
- te = to + 4tm + tp
Calculated Time Estimates
- Activity A: te = 2 + 4(5) + 8 = 24 -> te = 6
- Activity B: te = 2 + 4(3) + 4 = 30 -> te = 5
- Activity C: te = 6 + 4(8) + 10 = 72 -> te = 12
- Activity D: te = 2 + 4(4) + 6 = 30 -> te = 5
- Activity E: te = 2 + 4(6) + 10 = 66 -> te = 11
- Activity F: te = 6 + 4(7) + 8 = 54 -> te = 9
- Activity G: te = 6 + 4(8) + 10 = 90 -> te = 15
Network Diagram
- The network diagram for the project is constructed using the calculated time estimates.
Time Estimates for Each Activity
- Activity A: te = 4
- Activity B: te = 6
- Activity C: te = 10
- Activity D: te = 12
- Activity E: te = 9
- Activity F: te = 21
- Activity G: te = 22
- Activity H: te = 5
- Activity I: te = 3
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Description
This quiz is about creating an activity network diagram, a tool used in project management to organize and schedule tasks. Estimate the time required for each activity and determine the critical path.
