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[answered] A project has the activity duration and cost information in


1. A project has the activity duration and cost information indicated in the table where all times are in weeks.

Activity

Predecessor

Normal

Time

Normal

Cost

Crashed

Time

Crash

Cost

A

--

8

$12,000

5

$21,000

B

A

12

$20,000

9

$30,000

C

A

15

$24,000

10

$60,000

D

B

3

$10,000

2

$15,000

E

C

9

$17,000

6

$34,000

F

E

7

$5,000

6

$6,000

G

D

8

$14,000

6

$20,000

H

A

12

$22,000

10

$30,000

I

H

6

$50,000

5

$55,000

J

F,G,I

11

$33,000

9

$50,000

a. Draw a network diagram and find the critical path, ES, EF, LS, LF, and slack.

b. There is a penalty of $7,000 per week for every week the project extends beyond 39 weeks. What is the lowest total cost for completing this project?

2. Now consider the hours needed per day for each activities in the table in #1. Use the values in the table to answer the following questions.

Activity

Normal

Time (days)

Hours needed

per day

Predecessor

A

10

6

--

B

7

2

--

C

5

7

B

D

4

3

C

E

6

3

A

F

8

6

D,E

a. Draw a network diagram and find the critical path, ES, EF, LS, LF, and slack.

b. Assume that the project starts on Monday December 5th, 2016 and works 5 days a week. Create a resource loading table and a resource profile bar chart.

c. Assume that the maximum amount of time used per day is 8 hours. Level the resources in the resource loading table to satisfy the 8 hours per day. Then, discuss what happened on this project and give your suggestions..


1. A project has the activity duration and cost information indicated in the table where all times

 

are in weeks.

 

Activity

 

A

 

B

 

C

 

D

 

E

 

F

 

G

 

H

 

I

 

J Predecessor

 

-A

 

A

 

B

 

C

 

E

 

D

 

A

 

H

 

F,G,I Normal

 

Time

 

8

 

12

 

15

 

3

 

9

 

7

 

8

 

12

 

6

 

11 Normal

 

Cost

 

$12,000

 

$20,000

 

$24,000

 

$10,000

 

$17,000

 

$5,000

 

$14,000

 

$22,000

 

$50,000

 

$33,000 Crashed

 

Time

 

5

 

9

 

10

 

2

 

6

 

6

 

6

 

10

 

5

 

9 Crash

 

Cost

 

$21,000

 

$30,000

 

$60,000

 

$15,000

 

$34,000

 

$6,000

 

$20,000

 

$30,000

 

$55,000

 

$50,000 a. Draw a network diagram and find the critical path, ES, EF, LS, LF, and slack.

 

b. There is a penalty of $7,000 per week for every week the project extends beyond 39

 

weeks. What is the lowest total cost for completing this project?

 

2. Now consider the hours needed per day for each activities in the table in #1. Use the values

 

in the table to answer the following questions.

 

Activity

 

A

 

B

 

C

 

D

 

E

 

F Normal

 

Time (days)

 

10

 

7

 

5

 

4

 

6

 

8 Hours needed

 

per day

 

6

 

2

 

7

 

3

 

3

 

6 Predecessor

 

--B

 

C

 

A

 

D,E a. Draw a network diagram and find the critical path, ES, EF, LS, LF, and slack.

 

b. Assume that the project starts on Monday December 5th, 2016 and works 5 days a

 

week. Create a resource loading table and a resource profile bar chart.

 

c. Assume that the maximum amount of time used per day is 8 hours. Level the resources in the

 

resource loading table to satisfy the 8 hours per day. Then, discuss what happened on this

 

project and give your suggestions..

 

1

 


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