Project Management AIB and Crashing and Earned Value

Deadline 6 PM Friday September 27, 2013

 

10 Project Management Questions with sub-questions under each question.  A word document is provided with all questions and directions.

 

 

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:

 

a)      What is the Scheduled Completion of the Project?

 

b)      What is the Critical Path of the Project?

 

c)      What is the ES for Activity D?

 

d)     What is the LS for Activity G?

 

e)      What is the EF for Activity B?

 

f)       What is the LF for Activity H?

 

g)      What is the float for Activity I?

 

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:

 

a)      Calculate the scheduled completion time.

 

 

b)      Identify the critical path

 

 

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

 

 

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

 

 

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

 

 

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

Problem 3

 

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

 

Activity           Duration         Predecessors 

A                     5 Days                                           

B                     8 Days                                           

C                     6 Days             A                                

D                     4 Days            C, B                            

E                      5 Days            A                                

F                      4 Days            D, E, G                                   

G                     4 Days            B, C

H                     3 Day              G

 

Step 1: Construct a network diagram for the project.

Step 2: Answer the following questions:

 

a)      Calculate the scheduled completion time.

 

 

b)      Identify the critical path(s)

 

 

c)      What is the slack time (float) for activity B?

 

 

 

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

 

 

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

 

 

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

 

Problem 4

 

The following data were obtained from an in-house MIS project:

 

Activity           Duration         Predecessors 

A                     5 Days                                           

B                     8 Days                                           

C                     5 Days            A                                

D                     4 Days            B

E                      5 Days            B                                

F                      3 Day              C, D               

G                     7 Days            C, D

H                     6 Days            E, F, G

I                       9 Days            E, F

 

Step 1: Construct a network diagram for the project.

Step 2: Answer the following questions:

 

a)      Calculate the scheduled completion time.

 

 

b)      Identify the critical path

 

 

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

 

 

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

 

 

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

 

 

f)       What is the slack time (float) for activity F?

 

 

 

 

 

PROBLEM 5

Use the network diagram below and the additional information provided to answer the corresponding questions.

Crashing network 1

a) Give the crash cost per day per activity.

 

 

 

b) Which activities should be crashed to meet a project deadline of 10 days at minimum cost? What is the cost impact of crashing these activities?

 

 

 

c) Find the new budget (or cost of the project).

 

 

PROBLEM 6   Use the network diagram below and the additional information provided to answer the corresponding questions.  Crashing network 2         

a) Give the crash cost per day per activity.

 

 

 

b) Which activities should be crashed to meet a project deadline of 13 days at minimum cost? What is the cost impact of crashing these activities?

 

PROBLEM 7

Month

AC

PV

EV

22

$540

$523

$535

 

a)         Calculate the cost variance (CV).

 

 

b)         Is the CV over or under budget?

 

 

c)         Calculate the schedule variance (SV).

 

 

d)         Is the SV ahead of or behind schedule?

 

 

PROBLEM 8

Month

AC

PV

EV

5

$34

$42

$39

 

a)         Calculate the cost performance index (CPI).

 

 

b)         Is the project cost efficient or not efficient?

 

 

c)         Calculate the schedule performance index (SPI).

 

 

d)         Is the schedule efficient or not efficient?

 

 

 

PROBLEM 9 [8 points]

Day

AC

PV

EV

65

$550

$735

$678

 

a)         Calculate the cost variance (CV).

 

 

b)         Calculate the cost performance index (CPI).

 

 

c)         Calculate the schedule variance (SV).

 

 

d)         Calculate the schedule performance index (SPI).

 

e)         Given these data, what should a project manager do with respect to this project?

 

 

PROBLEM 10

 

Day

AC

PV

EV

65

$760

$735

$678

 

a)         Calculate the cost variance (CV).

 

 

b)         Calculate the cost performance index (CPI).

 

 

c)         Calculate the schedule variance (SV).

 

 

d)         Calculate the schedule performance index (SPI).

 

 

e)         Explain the project performance in terms of efficiency, budget, and schedule. What should the project manager do for the project?

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