EBK PRINCIPLES OF OPERATIONS MANAGEMENT
EBK PRINCIPLES OF OPERATIONS MANAGEMENT
11th Edition
ISBN: 9780135175644
Author: Munson
Publisher: VST
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Question
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Chapter 15, Problem 7P

a)

Summary Introduction

To solve: The given information by using the assignment method.

Introduction: The assignment method is one of the methods available in the process of optimization. Here, the jobs are assigned to every available resource.

a)

Expert Solution
Check Mark

Answer to Problem 7P

The problem has been solved by using the assignment method.

Explanation of Solution

Given information:

Squad Case
A B C D E
1 14 7 3 7 27
2 20 7 12 6 30
3 10 3 4 5 21
4 8 12 7 12 21
5 13 25 24 26 8

Assign cases to respective squads:

Row minimum:

Squad Case Row minimum
A B C D E
1 14 7 3 7 27 3
2 20 7 12 6 30 6
3 10 3 4 5 21 3
4 8 12 7 12 21 7
5 13 25 24 26 8 8

Table after the row subtraction is given below:

The row minimum value mentioned in the above table should be subtracted from each value of the row.

Squad Case
A B C D E
1 11 4 0 4 24
2 14 1 6 0 24
3 7 0 1 2 18
4 1 5 0 5 14
5 5 17 16 18 0

Column minimum:

Squad Case
A B C D E
1 11 4 0 4 24
2 14 1 6 0 24
3 7 0 1 2 18
4 1 5 0 5 14
5 5 17 16 18 0
Column minimum 1 0 0 0 0

Table after the column subtraction is given below:

The column minimum value mentioned in the above table should be subtracted from each value of the column.

Squad Case
A B C D E
1 10 4 0 4 24
2 13 1 6 0 24
3 6 0 1 2 18
4 0 5 0 5 14
5 4 17 16 18 0

Assigning squads to the cases:

Step 1: The first row must be checked for the zero. As there is only one zero in the first row, it must be marked and the entire column should be striked out.

EBK PRINCIPLES OF OPERATIONS MANAGEMENT, Chapter 15, Problem 7P , additional homework tip  1

Step 2: As only one zero is available in the second row, it must be marked and the entire column should be striked out.

EBK PRINCIPLES OF OPERATIONS MANAGEMENT, Chapter 15, Problem 7P , additional homework tip  2

Step 3: As only one zero is available in the third row, it must be marked and the entire column should be striked out.

EBK PRINCIPLES OF OPERATIONS MANAGEMENT, Chapter 15, Problem 7P , additional homework tip  3

Step 4: As only one zero is available in the fourth row, it must be marked and the entire column should be striked out.

EBK PRINCIPLES OF OPERATIONS MANAGEMENT, Chapter 15, Problem 7P , additional homework tip  4

Step 5: As only one zero is available in the fourth row, it must be marked and the entire column should be striked out.

EBK PRINCIPLES OF OPERATIONS MANAGEMENT, Chapter 15, Problem 7P , additional homework tip  5

Step 5: All the zeroes in the table have been striked out. The marked zeroes help to assign the cases to the squads.

Calculate the total person-days that are projected by using the assignment method:

The value has been taken in the given information where, the zeroes have been marked in the final answer.

Squad Case Value
1 C 3
2 D 6
3 B 3
4 A 8
5 E 8
Total 28
Conclusion

According to the table, Squad 1 should be assigned to Case C, Squad 2 should be assigned to Case D, Squad 3 should be assigned to Case B, Squad 4 should be assigned to Case A, and Squad 5 should be assigned to Case E. The total person days are 28 days.

b)

Summary Introduction

To solve: The given information by using assignment method.

Introduction: The assignment method is one of the methods available in the process of optimization. Here, the jobs are assigned to every available resource.

b)

Expert Solution
Check Mark

Answer to Problem 7P

The problem has been solved by using the assignment method.

Explanation of Solution

Given information:

Squad Case
A B C D E
1 14 7 3 7 27
2 20 7 12 6 30
3 10 3 4 5 21
4 8 12 7 12 21
5 13 25 24 26 8

It is given that the squad 5 cannot work on Case 5 because of the conflict.

Modified given information:

It is given that the squad 5 cannot work on Case 5 because of the conflict. Thus, the value should be modified from 8 to any other higher values. It is taken as 50 here.

Squad Case
A B C D E
1 14 7 3 7 27
2 20 7 12 6 30
3 10 3 4 5 21
4 8 12 7 12 21
5 13 25 24 26 50

Assign cases to respective squads:

Row minimum:

Squad Case Row minimum
A B C D E
1 14 7 3 7 27 3
2 20 7 12 6 30 6
3 10 3 4 5 21 3
4 8 12 7 12 21 7
5 13 25 24 26 50 13

Table after the row subtraction is given below:

The row minimum value mentioned in the above table should be subtracted from each value of the row.

Squad Case
A B C D E
1 11 4 0 4 24
2 14 1 6 0 24
3 7 0 1 2 18
4 1 5 0 5 14
5 0 12 11 13 37

Column minimum:

Squad Case
A B C D E
1 11 4 0 4 24
2 14 1 6 0 24
3 7 0 1 2 18
4 1 5 0 5 14
5 0 12 11 13 37
Column minimum 0 0 0 0 14

Table after the column subtraction is given below:

The column minimum value mentioned in the above table should be subtracted from each value of the column.

Squad Case
A B C D E
1 11 4 0 4 10
2 14 1 6 0 10
3 7 0 1 2 4
4 1 5 0 5 0
5 0 12 11 13 23

Assigning squads to the cases:

Step 1: The first row must be checked for the zero. As there is only one zero in the first row, it must be marked and the entire column should be striked out.

EBK PRINCIPLES OF OPERATIONS MANAGEMENT, Chapter 15, Problem 7P , additional homework tip  6

Step 2: As only one zero is available in the second row, it must be marked, and the entire column should be striked out.

EBK PRINCIPLES OF OPERATIONS MANAGEMENT, Chapter 15, Problem 7P , additional homework tip  7

Step 3: As only one zero is available in the third row, it must be marked, and the entire column should be striked out.

EBK PRINCIPLES OF OPERATIONS MANAGEMENT, Chapter 15, Problem 7P , additional homework tip  8

Step 4: As only one zero is available in the fourth row, it must be marked, and the entire column should be striked out.

EBK PRINCIPLES OF OPERATIONS MANAGEMENT, Chapter 15, Problem 7P , additional homework tip  9

Step 5: As only one zero is available in the fifth row, it must be marked, and the entire column should be striked out.

EBK PRINCIPLES OF OPERATIONS MANAGEMENT, Chapter 15, Problem 7P , additional homework tip  10

Step 5: All the zeroes in the table have been strikedout. The marked zeroes help to assign the cases to the squads.

Calculate the total person days that are projected by using the assignment method:

The value has been taken in the given information where, the zeroes have been marked in the final answer.

Squad Case Value
1 C 3
2 D 6
3 B 3
4 E 21
5 A 13
Total 46
Conclusion

According to the table, Squad 1should be assigned to Case C, Squad 2 should be assigned to Case D, Squad 3 should be assigned to Case B, Squad 4 should be assigned to Case E, and Squad 5 should be assigned to Case A. The total person days are 46 days.

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