As Patrick Sportwear Co. completes plans for its new assembly line in Liverpool, it identifies 30 different tasks in the production process. VP of Operations Kevin Keegan now faces the job of balancing the line.  He lists precedences and provides time estimates for each step based on work-sampling techniques. His goal is to produce 1.000 football shoes per standard 35-hour workweek. Task Time (sec) Immediate Predecessors Task Time (sec) Immediate Pred

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As Patrick Sportwear Co. completes plans for its new assembly line in Liverpool, it identifies 30 different tasks in the production process. VP of Operations Kevin Keegan now faces the job of balancing the line.  He lists precedences and provides time estimates for each step based on work-sampling techniques.

His goal is to produce 1.000 football shoes per standard 35-hour workweek.

Task

Time (sec)

Immediate

Predecessors

Task

Time (sec)

Immediate

Predecessors

B1

50

-

E2

18

G5, F3

K4

24

B1

A4

10

E1

K9

27

B1

E3

109

F3

J1

66

B1

D6

53

F4

C2

12

-

D7

72

F9, E2, E3, K9

J2

22

B1

C1

78

F7, A4

J3

3

C2

D8

78

E3, D6

D5

6

-

D9

37

D6, A4

G4

79

K4, K9

C3

40

F9, D7

G5

29

K9, J1

B3

72

D7, D8, D9, C1

F3

32

J2

B5

108

C1

F4

92

J2

A1

52

B5

F7

21

J3

B7

18

A1, B3, C3

E1

20

C2

A2

72

B5

F9

126

G4, K4

A3

114

B7, A1, A2, D5

1A) Balance this operation using the shortest operation time rule and compute the efficiency of the line.

  • first create a precedence diagram. 

2B) Second: Balance the operations using the given heuristic.

  • here is the table.

Work Station

Eligible

Task(s)

Assign Task

Task Time

Time Remaining

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   
  • Third: Identify the efficiency of the operation's balance and explain/justify your answer
  • Fourth: Explain the process followed, observe and criticise your answer.

i have found some answers on bartleby for this question like for the precedence diagram but it looked different to the one i am supposed to create as shown in the picture and for the other question i coundt find anything.

 

 

Task
A
B
C
D
E
F
G
H
I
J
Time
(sec)
40
30
50
40
6
25
15
20
18
30
Immediate
Predecessors
A
A
B
B
C
C
D, E
F, G
H, I
(b) Use the most following tasks heuristic to
balance an assembly line for the iStar
phone?
Firstly, we need to draw the precedence
diagram.
A
B
C
E
F
G
H
3
Transcribed Image Text:Task A B C D E F G H I J Time (sec) 40 30 50 40 6 25 15 20 18 30 Immediate Predecessors A A B B C C D, E F, G H, I (b) Use the most following tasks heuristic to balance an assembly line for the iStar phone? Firstly, we need to draw the precedence diagram. A B C E F G H 3
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