12. A project manager at Kippy Jo's Cosmetics wishes to determine total human resource needs for an upcoming marketing campaign involving three of the company's products. Each product will be marketed through a different medium. Precedence relationships for project tasks, along with resource information, are highlighted in the table below:
Task Duration (Days) Immediate Predecessor Resource Requirement (# Staff Members Required per Day)
A. Research, Product 1 3 None 4
P. 2 2 None 5
P.3 3 None 6
P.4 2 A 6
P.5 9 A 5
P.6 3 B 5
P.7 3 B 2
P.8 2 C 4
P.9 0 D, E, F, G, H 0
a. Draw an AON and time-based network diagram and identify the critical path in each one.
b. Calculate the daily resource loads for the project. (You may wish to use Excel although this problem is small enough to lend itself to a manual approach.)
c. Scenario 1, Time Constrained: Revise the schedule to smooth resource requirements without changing the project's duration. No task splitting or task com- pression (crashing) will be allowed. Write a few sentences about the managerial implications of this revised schedule.
d. Scenario 2, Resource Constrained: Return to the original early-start schedule and assume the number of staff members has been limited to 10. Reschedule the project to accommodate this constraint. As in Part C, you may not split or compress tasks. You will have to change the project's end date, so your goal will be to meet resource constraints with the shortest possible project duration. Write a few sentences about the managerial implications of this schedule.