The network below represents a project being analyzed by the critical path method. Activity durations are indicated on the network
a. Identify the activities on the critical path.
b. What is the duration of the critical path?
c. Calculate the amount of slack time at activity H.
d. If activity I were delayed by ten time units, what would be the impact on the project duration?
(a) Critical activities are A-C-J-K; (b) The critical path is 26 time units; (c) Slack at H is 9 units; (d) I has 11 units slack—a ten unit delay would have no impact on the project.
Task Early Start Early Finish Late Start Late Finish Slack
A 0 5 0 5 0
B 0 3 6 9 6
C 5 16 5 16 0
D 0 4 9 13 9
E 3 10 9 16 6
F 4 10 15 21 11
G 3 7 17 21 14
H 4 7 13 16 9
I 10 15 21 26 11
J 16 22 16 22 0
K 22 26 22 26 0
Project 26
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