OPERATIONS MANAGEMENT W/ CNCT+
12th Edition
ISBN: 9781259574931
Author: Stevenson
Publisher: MCG CUSTOM
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Chapter 16, Problem 13P
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The Mowry Machine Shop still has five jobs to be processed as of 8 A.M. today (day
23)
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
11
10
22
B
10
8
13
C
8
4
19
D
6
4
16
E
1
3
30
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
A
B
C
D
E
Using the EDD (earliest due date) decision rule for sequencing the jobs,…
The Mowry Machine Shop still has five jobs to be processed as of 8 A.M. today (day
23)
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
11
10
22
B
10
8
13
C
8
4
19
D
6
4
16
E
1
3
30
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
▼
A
E
B
C
D
▼
E
C
B
D
A
▼
A
B
C
E
D
▼
A
B
D
C
E
▼
C
B
D
E
A
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
A
B
C
D
E
Using the EDD (earliest due date) decision rule for sequencing the jobs, the…
Chapter 16 Solutions
OPERATIONS MANAGEMENT W/ CNCT+
Ch. 16 - Why is scheduling fairly simple for repetitive...Ch. 16 - Prob. 2DRQCh. 16 - What are Gantt charts? How are they used in...Ch. 16 - Prob. 4DRQCh. 16 - Briefly describe each of these priority rules: a....Ch. 16 - Why are priority rules needed?Ch. 16 - What problems not generally found in manufacturing...Ch. 16 - Explain forward and backward schedulings and each...Ch. 16 - Prob. 9DRQCh. 16 - Prob. 10DRQ
Ch. 16 - Prob. 11DRQCh. 16 - What general trade-offs are involved in sequencing...Ch. 16 - Prob. 2TSCh. 16 - Prob. 3TSCh. 16 - One approach that can be effective in reducing the...Ch. 16 - Doctors and dentists offices frequently schedule...Ch. 16 - Prob. 3CTECh. 16 - Use the assignment method to determine the best...Ch. 16 - Rework Problem 1, treating the numbers in the...Ch. 16 - Assign trucks to delivery routes so that total...Ch. 16 - Develop an assignment plan that will minimize...Ch. 16 - Use the assignment method to obtain a plan that...Ch. 16 - The following table contains information...Ch. 16 - Using the information presented in the following...Ch. 16 - The following table shows orders to be processed...Ch. 16 - A wholesale grocery distribution center uses a...Ch. 16 - The times required to complete each of eight jobs...Ch. 16 - Prob. 11PCh. 16 - A shoe repair operation uses a two-step sequence...Ch. 16 - The following schedule was prepared by the...Ch. 16 - The production manager must determine the...Ch. 16 - A foreman has determined processing times at a...Ch. 16 - Given the information in the following table,...Ch. 16 - Given the following information on job times and...Ch. 16 - Prob. 18PCh. 16 - The following table contains order-dependent setup...Ch. 16 - The following table contains order-dependent setup...Ch. 16 - Prob. 21PCh. 16 - Given this information on planned and actual...Ch. 16 - Given the following data on inputs and outputs at...Ch. 16 - Determine the minimum number of workers needed,...Ch. 16 - Determine the minimum number of workers needed,...Ch. 16 - Determine the minimum number of workers needed,...Ch. 16 - Prob. 1CQ
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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 A B C D E Using the EDD (earliest due date) decision rule for sequencing the jobs, the…arrow_forwardThe Mowry Machine Shop still has five jobs to be processedas of 8 a.m. today (day 23) at its bottleneck operation. The daywhen the order arrived, processing time, and promised duedates are given in the following table. The jobs are listed inthe order of arrival.a. Develop separate schedules by using the FCFS and EDDrules. Compare the schedules on the basis of averageflow time and average days past due.b. Which rule gives the best schedule, in your judgment?Why?arrow_forwardWrite the Objectives of Workcenter Scheduling?arrow_forward
- What does it mean for a process to be "starved" according to the priority scheduling method? What are some ways that this may be avoided?arrow_forwardRon Satter field's excavation company uses bothGantt scheduling charts and Gantt load charts.a) Today, which is the end of day 7, Ron is reviewing the Ganttchart depicting these schedules:• Job # 151 was scheduled to begin on day 3 and to ta ke6 days. As of now, it is I day ahead of schedule.• Job# 177 was scheduled to begin on day J and take 4 days.It is currently on time.• Job #1 79 was scheduled to start on day 7 and take 2 days. Itactually got started on day 6 and is progressing according toplan.• Job #211 was scheduled to begin on day 5, but missingequipment delayed it until day 6. It is progressing asexpected and should take 3 days.• Job #215 was scheduled to begin on day 4 and take 5 days.It got sta rted on time but has since fallen behind 2 days.Draw the Gantt scheduling chart for the activities described.b) Ron now wants to use a Ga ntt load chart to see how muchwork is scheduled in each of his three work teams: Able,Baker, and Charlie. Five jobs constitute the current…arrow_forwardThe mowry machine shop still has five jobs to be processed as of 8A.M today (day 29) 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 order of arrival: Job Time Since Order Arrived (days ago) Processing Time (days) Due Date (days from now) A 12 4 10 B 7 3 24 C 5 10 16 D 3 8 7 E 1 4 13 Develope serpate schedules by using the FCF and EDS rules. Using FCF, the order is Using EDS, the order is The average flow time and average days past due are. Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.arrow_forward
- Using Johnson's rule for 2-machine scheduling, the sequence is: Scheduled Order Job 1 ▼ B C E F A D Part 2 2 ▼ F C A D B E Part 3 3 ▼ A B D F C E Part 4 4 ▼ E D C B F A Part 5 5 ▼ F C D A E B Part 6 6 ▼ D C F B E A Part 7 For the schedule developed using Johnson's rule, the total length of time taken to complete the six jobs (including the 2nd operation) = enter your response here hours (enter your response as a whole number). ... Question content area right Part 1 Six jobs are to be processed through a two-step operation. The first operation involves sanding, and the second involves painting. Processing times are as follows: Job Operation 1 (hours) Operation 2 (hours) A 4 8 B 10 5 C 3 11 D…arrow_forwardWhat are the objectives of work center scheduling?arrow_forwardExplain what is the aim of a scheduling planning and monitoring system?arrow_forward
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