Chapter 8 Homework Assignment
Questions
1. Draw an Activity-on-Arrow Diagram for the following:
|
Activity Name
|
Predecessor(s)
|
|
A
|
None
|
|
B
|
None
|
|
C
|
A
|
|
D
|
A,B
|
|
E
|
D
|
|
F
|
E
|
2. Draw an Activity-on-Node Diagram for the following:
|
Activity Name
|
Predecessor(s)
|
|
A
|
None
|
|
B
|
None
|
|
C
|
A
|
|
D
|
A,B
|
|
E
|
D
|
|
F
|
E
|
3. Should the critical path activities be managed differently from non-critical path activities for a project? Explain your response.
4. Using the PERT (Program Evaluation Review Technique) estimating method, calculate the expected time (TE) for each of the following activities. Round to the nearest whole number using standard rounding.
|
Activity
|
Optimistic (days)
|
Pessimistic (days)
|
Most Likely (days)
|
|
Activity A
|
2
|
12
|
4
|
|
Activity B
|
5
|
25
|
20
|
|
Activity C
|
10
|
50
|
18
|
|
Activity D
|
3
|
10
|
7
|
5. Draw an Activity-on-Node Diagram, identify project duration, slack for each activity, and project critical path for the following:
|
Activity Name
|
Predecessor(s)
|
Duration (Weeks)
|
|
A
|
None
|
5
|
|
B
|
None
|
10
|
|
C
|
None
|
5
|
|
D
|
A,B
|
5
|
|
E
|
C
|
10
|
|
F
|
C,D
|
15
|
|
G
|
E,F
|
5
|
6. Draw an Activity-on-Node Diagram, identify activity duration, slack for each activity, project duration, and project critical path for the following. Don't forget that you have to compute the duration using the PERT formula (a+4m+b/6). Round to the nearest whole number using standard rounding.
|
Activity Name
|
Predecessor(s)
|
a
|
m
|
b
|
|
A
|
None
|
5
|
20
|
40
|
|
B
|
None
|
10
|
25
|
50
|
|
C
|
None
|
5
|
10
|
50
|
|
D
|
A,B
|
5
|
10
|
30
|
|
E
|
C
|
10
|
20
|
40
|
|
F
|
C,D
|
10
|
20
|
60
|
|
G
|
E,F
|
5
|
20
|
40
|