The QuickBuild Construction Company is building a house in the suburb of Oxford, AL.They have the following list of activities, precedence, and (very optimistic, almost fixed) durations for the project.
|
Activity
|
Predecessors
|
Duration (Days)
|
|
A. Excavation
|
-
|
5
|
|
B. Pour Foundation
|
A
|
2
|
|
C. Outside Plumbing
|
A
|
12
|
|
D. Framing
|
-
|
3
|
|
E. Wiring
|
B
|
5
|
|
F. Roofing
|
D
|
1
|
|
G. Brickwork
|
B
|
7
|
|
H. Cover Walls
|
C, E
|
2
|
|
I. Exterior Finishing
|
G, F
|
10
|
|
J. Landscaping
|
H, I
|
6
|
a. Draw a project network diagram, including activity durations. (Please show all the activities from the starting point to the end.) You may either use AON or AOA.
b. What is the Critical Path in the network?
c. What is th project completion time (=the duration of the project) from the starting point to the ending point?
d. What is the slack time (in days) associated with any and all non-critical paths through the project? If activity C were delayed by two time units, what woul dhappen to the entire project duration? Please explain and show all work with calculations for ES, EF, LS, LF.