Develop separate schedules by using the FCFS and EDD rules. Compare the schedules on the basis of average flow time and average days past due.

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter4: Linear Programming Models
Section: Chapter Questions
Problem 111P
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The Mowry Machine Shop still has five jobs to be processed as of 8 A.M. today​ (day
30​)
at its bottleneck operation. The time since the order​ arrived, processing​ time, and promised due dates are given in the following table. The jobs are listed in the order of arrival.
                                                                                         
Job
Time Since
Order Arrived
​(days ago)
Processing
Time​ (days)
Due Date
​(days from
​now)
A
8
3
23
B
6
10
15
C
4
8
6
D
2
4
12
E
1
6
9
 
a. Develop separate schedules by using the FCFS and EDD rules. Compare the schedules on the basis of average flow time and average days past due.
Using the FCFS​ (first come, first​ served) decision rule for sequencing the​ jobs, the order​ is:
 
Sequence
1
2
3
4
5
Job
 
E
A
C
B
D
 
A
E
B
C
D
 
D
B
C
E
A
 
E
A
B
D
C
 
E
D
A
B
C
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