AIB Problem

Week Three Homework: AIB Problem
PROJ586 Project Management Systems

Problem 1

The following data were obtained from a project to create a new portable electronic.

Activity Duration Predecessors
A 5 Days ---
B 6 Days ---
C 8 Days ---
D 4 Days A, B
E 3 Days C
F 5 Days D
G 5 Days E, F
H 9 Days D
I 12 Days G

Step 1: Construct a network diagram for the project.
Step 2: Answer the following questions: (15 points total)

a) What is the Scheduled Completion of the Project? (5 points)

Answer: 32 days

b) What is the Critical Path of the Project? (5 points)

Answer: B, D, F, G, I

c) What is the ES for Activity D? (1 points)

Answer: 6 days

d) What is the LS for Activity G? (1 points)

Answer: 15 days

e) What is the EF for Activity B? (1 points)

Answer: 6 days

f) What is the LF for Activity H? (1 points)

Answer: 32 days

g) What is the float for Activity I? (1 points)

Answer: 0 days

Problem 2

The following data were obtained from a project to build a pressure vessel:

Activity Duration Predecessors
A 6 weeks ---
B 6 weeks ---
C 5 weeks B
D 4 weeks A, C
E 5 weeks B
F 7 weeks D, E, G
G 4 weeks B
H 8 weeks F
I 5 weeks G
J 3 week I

Step 1: Construct a network diagram for the project.
Step 2: Answer the following questions: (15 points total)

a) Calculate the scheduled completion time. (5 points)

Answer: 30 days

b) Identify the critical path (6 points)

Answer: B, C, D, F, H

c) What is the slack time (float) for activity A? (1 points)

Answer: 5 days

d) What is the slack time (float) for activity D? (1 points)

Answer: 0 days

e) What is the slack time (float) for activity E? (1 points)

Answer: 4 days

f) What is the slack time (float) for activity G? (1 points)

Answer: 5 days

Problem 3

The following data were obtained from a project to design a new software package:

Activity Duration Predecessors
A 5