How long can noncritical path activities be delayed without jeopardizing the overall completion date for this project?

  • 12-1 Using the information in Table 12-7, construct a PERT network and answer each of the following questions:
    • a. What is the expected project completion data?
    • b. What is the scheduled start and completion date for each activity?
    • c. Which activities are on the critical path?
    • d. How long can noncritical path activities be delayed without jeopardizing the overall completion date for this project?
  • 12-2 Assess the impact of the following changes to the time estimates provided in question 12-1. Individually, what is the impact if:

 

Activity Predecessor New Time Estimate
O. Advertise for new staff N 4
P. Interview for new staff O 6
Q. Select new staff P 1
Collectively, what is the impact of these changes?

 

  • 12-3 As project manager for the example included in question 12-1, what would you recommend to preserve the original project completion date if activity A was reestimated to take 8 weeks, not the original 4 weeks? Provide details.

 

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·         Table 12-7 Project to Convert a 20-Bed Unit in a Nursing Home to Accommodate Patients with Dementia

 

Activity Predecessor Time estimate (weeks)
A Secure state approval 4
B Identify 20-bed unit to be used A 1
C Move existing residents B 1
D Clean space C 2
E Develop architectural plans A 9
F Install new heating and ventilation systems E 4
G Install security systems E 2
H Move walls; renovate F 4
I Identify new equipment A 1
J Order new equipment I 1
K Unpack and inspect new equipment J 1
L Install new equipment D, K, H 3
M Reassign staff A 1
N Identify new staffing needs M 1
O Advertise for new staff N 3
P Interview for new staff O 2
Q Select new hires P 3
R Develop care plan protocols M 1
S Train staff R, Q, M, L 1
T Modify quality assurance plans S 2
U Coordinate with hospital discharge planners T 4
V Complete internal audit U, G 1
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