Consider the following work breakdown structure:
Task Immediate Predecessor Duration
A – – – 5
B A 12
C A 7
D C 6
E B, D 8
F D 19
G D 3
H E 4
I F, G, H 6
Which of the following are so-called “critical path” tasks in this situation?
A
B
C
D
E
F
G
H
I
Expert Answer
The various paths and their expected completion time for this project are
A-B-E-H-I = 5+12+8++4+6 = 35
A-C-D-E-H-I = 5+7+6+8+4+6 = 36
A-C-D-F-I = 5+7+6+19+6 = 43
A-C-D-G-I = 5+7+6+3+6 = 27
So the critical path is A-C-D-F-I as it has the longest expected completion time. So the critical path tasks in this situation are A, C, D, F, I.