Question:
Information Systems Analysis
Information Systems analysis textbook practice questions.
Questions:
Assume you have a project with 10 activities labeled A-J (immediately following). Derive the earliest completion time (or early finish-EF), latest completion time (or late finish -LF), and slack for each of the following task (begin at time = 0). Which tasks are on the critical path? Highlight the critical path on your PERT chart.
|
Activity
|
Preceding
Event
|
Expected
Duration
|
EF
|
LF
|
Slack
|
Critical Path
|
|
A
|
-
|
4
|
|
|
|
|
|
B
|
A
|
5
|
|
|
|
|
|
C
|
A
|
6
|
|
|
|
|
|
D
|
A
|
7
|
|
|
|
|
|
E
|
A,D
|
6
|
|
|
|
|
|
F
|
C,E
|
5
|
|
|
|
|
|
G
|
D,E
|
4
|
|
|
|
|
|
H
|
E
|
3
|
|
|
|
|
|
I
|
F,G
|
4
|
|
|
|
|
|
J
|
H,I
|
5
|
|
|
|
|