Operations Management
Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
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Chapter 15, Problem 12P

a)

Summary Introduction

To determine: Thesequence of jobs that are based on decision rule First Come First Served (FCFS).

Introduction: First Come First Served is the scheduling rule, which helps to arrange the sequence in the order. Here, the first come would be served first.

b)

Summary Introduction

To determine: The sequence of jobs based on decision rule Shortest Processing Time (SPT).

Introduction: Shortest Processing Tine is the scheduling rule, which helps to arrange the sequence in the order. Here, job with the shortest duration would be served first. Then, the process would go  on from the shortest to largest duration.

c)

Summary Introduction

To determine: The sequence of jobs based on decision rule Longest Processing Time (LPT).

Introduction: Largest Processing Tine is the scheduling rule, which helps to arrange the sequence in the order. Here, job with the largest duration would be served first. Then, the process would go on from the largest to shortest duration.

d)

Summary Introduction

To determine: The sequence of jobs based on decision rule Earliest Due Date (EDD).

Introduction: Earliest Due Date is the scheduling rule, which helps to arrange the sequence in the order. Here, job with the earliest due date would be served first. Then, the process would go on from the earliest due date to latest due date.

e)

Summary Introduction

To determine: The sequence of jobs based on critical ratio.

Introduction: Critical ratio is kind of scheduling rule that helps to identify that, the task or job is on the correct track. It would help to identify if the task is behind or ahead of the schedule.

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QUESTION 6 The framing department has six jobs waiting to be processed as shown in Table 3 below. It is now time zero and all jobs are ready to begin. Each has only one operation remaining. Table 3 Jobs (In order of arrival) Processing Time Due Date A 5 12 B 7 18 C 8. 14 D 3 10 E 9 22 F 12 17 Using minimum flow time as the evaluation criterion, recommend the best rule to sequence the jobs from the list below: i. FCFS ii. SOT iii. EDD iv. STR
Question 33  The processing times of five jobs are given as follows: Job Processing time (minutes) A 20 B 60 C 30 D 75 E 15 Assume the jobs arrived in alphabetical order of the job name and no other job arrives in the next 200 minutes. What is the average inventory if the jobs are processed in shortest processing time (SPT) order? Group of answer choices 3.00 2.92 1.97 2.20
Question 3 of 19 The following table contains information concerning four jobs that are awaiting processing at a work center. Job Time Due date (days) (days) 14 10 7 6 Job A B C D Determine the average flow time using the EDD rule. Select the correct response: 20 20.5 19.75 21 20 16 15 17 ProviQUS
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