1. Kamauf Custom Glass, Inc., manufactures custom windows primarily for homes and churches. Small repair jobs may take a few hours, but larger jobs may take hundreds of hours. How to schedule the jobs is a continuing issue. The scheduler has decided to see what insight can be gained by examining some common sequencing rules, namely FCFS, EDD, SPT, and LPT, on the criteria of average completion (flow) time, average lateness, and average number of jobs in the system. Her sample is the six jobs on the scheduler's desk Monday morning. Assume that all jobs on the scheduler's desk arrived today (day 90, which is a workday) in the order shown below. The estimated times to complete the jobs and their due dates are noted. According to the FCFS rule, the sequence of jobs should be (1) According to the EDD rule, the sequence of jobs should be (2). a) Sequence the jobs according to the following decision rules: FCFS, EDD, SPT, and LPT. According to the SPT rule, the sequence of jobs should be (3) f) Which is the best decision rule based on average completion (flow) time? Alter piece (A) Baptist Church (B) Church of Christ (C) Deacon's window (D) The best decision rule based on average completion (flow) time is (5) g) Which is the best decision rule based on average lateness? Entry way (special order) (E) Frank's Construction (kitchen window) (F) JOB Rule FCFS According to the LPT rule, the sequence of jobs should be (4) b), c), d) & e) Compute the average completion (flow) time, average lateness, and average number of jobs in the system for each rule. Construct the table of measures of effectiveness for each rule (round your responses to two decimal places). EDD SPT LPT Average Completion (Flow) Time DUE DATE (DAYS) 130 145 III 360 110 120 165 Average Lateness DURATION (DAYS REQUIRED) 5 30 110 15 18 25 Average Number of Jobs in System
1. Kamauf Custom Glass, Inc., manufactures custom windows primarily for homes and churches. Small repair jobs may take a few hours, but larger jobs may take hundreds of hours. How to schedule the jobs is a continuing issue. The scheduler has decided to see what insight can be gained by examining some common sequencing rules, namely FCFS, EDD, SPT, and LPT, on the criteria of average completion (flow) time, average lateness, and average number of jobs in the system. Her sample is the six jobs on the scheduler's desk Monday morning. Assume that all jobs on the scheduler's desk arrived today (day 90, which is a workday) in the order shown below. The estimated times to complete the jobs and their due dates are noted. According to the FCFS rule, the sequence of jobs should be (1) According to the EDD rule, the sequence of jobs should be (2). a) Sequence the jobs according to the following decision rules: FCFS, EDD, SPT, and LPT. According to the SPT rule, the sequence of jobs should be (3) f) Which is the best decision rule based on average completion (flow) time? Alter piece (A) Baptist Church (B) Church of Christ (C) Deacon's window (D) The best decision rule based on average completion (flow) time is (5) g) Which is the best decision rule based on average lateness? Entry way (special order) (E) Frank's Construction (kitchen window) (F) JOB Rule FCFS According to the LPT rule, the sequence of jobs should be (4) b), c), d) & e) Compute the average completion (flow) time, average lateness, and average number of jobs in the system for each rule. Construct the table of measures of effectiveness for each rule (round your responses to two decimal places). EDD SPT LPT Average Completion (Flow) Time DUE DATE (DAYS) 130 145 III 360 110 120 165 Average Lateness DURATION (DAYS REQUIRED) 5 30 110 15 18 25 Average Number of Jobs in System
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
Related questions
Question
Transcribed Image Text:1. Kamauf Custom Glass, Inc., manufactures custom windows primarily for homes and churches. Small repair jobs may take a few hours, but larger jobs may take hundreds of hours. How to schedule the jobs is a continuing issue. The scheduler
has decided to see what insight can be gained by examining some common sequencing rules, namely FCFS, EDD, SPT, and LPT, on the criteria of average completion (flow) time, average lateness, and average number of jobs in the system.
Her sample is the six jobs on the scheduler's desk Monday morning. Assume that all jobs on the scheduler's desk arrived today (day 90, which is a workday) in the order shown below. The estimated times to complete the jobs and their due dates
are noted.
According to the FCFS rule, the sequence of jobs should be (1)
a) Sequence the jobs according to the following decision rules: FCFS, EDD, SPT, and LPT.
According to the EDD rule, the sequence of jobs should be (2)
According to the SPT rule, the sequence of jobs should be (3)
f) Which is the best decision rule based on average completion (flow) time?
Alter piece (A)
Baptist Church (B)
Church of Christ (C)
Deacon's window (D)
The best decision rule based on average completion (flow) time is (5)
g) Which is the best decision rule based on average lateness?
JOB
Entry way (special order) (E)
Frank's Construction (kitchen window) (F)
According to the LPT rule, the sequence of jobs should be (4).
b), c), d) & e) Compute the average completion (flow) time, average lateness, and average number of jobs in the system for each rule.
Construct the table of measures of effectiveness for each rule (round your responses to two decimal places).
Rule
FCFS
EDD
SPT
LPT
DUE
DATE (DAYS)
130
145
360
110
120
165
Average
Completion (Flow)
Time
Average Lateness
DURATION (DAYS
REQUIRED)
5
30
110
15
18
25
Average Number of Jobs
in System
Transcribed Image Text:f) Which is the best decision rule based on average completion (flow) time?
The best decision rule based on average completion (flow) time is (5)
g) Which is the best decision rule based on average lateness?
The best decision rule based on average lateness is (6)
(1)
(2)
O B, C, A, E, F, D
O B, D, F, E, A, C
A, D, E, F, B, C
A, B, C, D, E, F
C, B, F, E, D, A
D, E, A, B, F, C
A, D, E, F, B, C
A, B, C, D, E, F
D, E, A, B, F, C
B, D, F, E, A, C
O
B, C, A, E, F, D
C, B, F, E, D, A
A, D, E, F, B, C
D, E, A, B, F, C
A, B, C, D, E, F
B, C, A, E, F, D
O B, D, F, E, A, C
O C, B, F, E, D, A
(4) O B, C, A, E, F, D
D, E, A, B, F, C
C, B, F, E, D, A
A, D, E, F, B, C
B, D, F, E, A, C
A, B, C, D, E, F
(5)
LPT
EDD
FCFS
SPT
FCFS
SPT
LPT
EDD
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 4 images
Recommended textbooks for you
Practical Management Science
Operations Management
ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,
Operations Management
Operations Management
ISBN:
9781259667473
Author:
William J Stevenson
Publisher:
McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi…
Operations Management
ISBN:
9781259666100
Author:
F. Robert Jacobs, Richard B Chase
Publisher:
McGraw-Hill Education
Practical Management Science
Operations Management
ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,
Operations Management
Operations Management
ISBN:
9781259667473
Author:
William J Stevenson
Publisher:
McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi…
Operations Management
ISBN:
9781259666100
Author:
F. Robert Jacobs, Richard B Chase
Publisher:
McGraw-Hill Education
Purchasing and Supply Chain Management
Operations Management
ISBN:
9781285869681
Author:
Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:
Cengage Learning
Production and Operations Analysis, Seventh Editi…
Operations Management
ISBN:
9781478623069
Author:
Steven Nahmias, Tava Lennon Olsen
Publisher:
Waveland Press, Inc.