Operations and Supply Chain Management 9th edition
9th Edition
ISBN: 9781119320975
Author: Roberta S. Russell, Bernard W. Taylor III
Publisher: WILEY
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Textbook Question
Chapter 17, Problem 13P
Sequence the following jobs by (a) SPT, (b) DDATE, and (c) SLACK. Calculate mean flow lime, mean tardiness, and maximum tardiness. Which sequencing rule would you recommend? Why?
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Students have asked these similar questions
Refer to the following data for jobs waiting to be processed at a single work center (jobs are
shown in order of arrival):
Job
A
B
с
D
E
F
Processing
Time (Days)
2
5
7
6
4
10
Due Date:
(days from Now)
2
6
15
12
8
3
What is the average flow time for the earliest due date (EDD) rule schedule?
What happens to the non-bottleneck resources when the bottleneck resource is maximized?
The Pullman Mfg., Inc. three-station work cell illustrated in the figure below has two machines at station 1 in parallel. (The product needs to go through only one of the two machines before
proceeding to station 2.)
20 min/unit
Station 1
Machine A
b) The bottleneck time of the new work cell is
Station 1
Machine B
20 min/unit
Station 2
2 min/unit
Station 3
12 min/unit
+
The manager, Seimone Hartley, has asked you to evaluate the system if she adds a parallel machine at station 3.
a) The throughput time of the new work cell is
minutes (enter your response as a whole number).
minutes per unit (enter your response as a whole number).
c) If the firm operates 9 hours per day, 6 days per week, the weekly capacity of the work cell with the second machine at workstation 3 is
units (enter your response as a whole number).
d) If the firm operates 9 hours per day, 6 days per week, the weekly capacity of the work cell without the second machine at workstation 3 is units (enter your response as a…
Chapter 17 Solutions
Operations and Supply Chain Management 9th edition
Ch. 17 - Scheduling Major League Baseball Umpires It used...Ch. 17 - Scheduling Major League Baseball Umpires It used...Ch. 17 - Solving Tough Scheduling Problems in Healthcare...Ch. 17 - Solving Tough Scheduling Problems in Healthcare...Ch. 17 - Analytics at Airbnb Airbnb is a global community...Ch. 17 - Analytics at Airbnb Airbnb is a global community...Ch. 17 - Analytics at Airbnb Airbnb is a global community...Ch. 17 - Analytics at Airbnb Airbnb is a global community...Ch. 17 - How do scheduling activities differ for projects,...Ch. 17 - Why is scheduling a job shop so difficult?
Ch. 17 - What three functions are typically performed by a...Ch. 17 - Prob. 4QCh. 17 - How can the success of a scheduling system be...Ch. 17 - Describe the process of loading and load leveling....Ch. 17 - What is the purpose of dispatch lists? How are...Ch. 17 - When should the following sequencing rules be...Ch. 17 - Give examples of sequencing rules you use to...Ch. 17 - What information is provided by the critical ratio...Ch. 17 - How are work packages, hot lists, and exception...Ch. 17 - What are Gantt charts, and why are they used so...Ch. 17 - Explain the concept behind input/output control....Ch. 17 - Explain the difference between infinite and finite...Ch. 17 - How does theory of constraints differ from...Ch. 17 - Explain the drum-buffer-rope concept.Ch. 17 - Discuss the similarities and differences between...Ch. 17 - What are some typical issues involved in employee...Ch. 17 - What quantitative techniques are available to help...Ch. 17 - At Valley Hospital, nurses beginning a new shift...Ch. 17 - Valley Hospital (from Problem 17.1) wants to focus...Ch. 17 - Prob. 3PCh. 17 - Sunshine House received a contract this year as a...Ch. 17 - Karina Nieto works for New Products Inc., and one...Ch. 17 - Decenture has four new IT hires available for...Ch. 17 - Blue Jeans Modeling Agency specializes in...Ch. 17 - Evan Schwartz has six jobs wailing to be processed...Ch. 17 - College students always have a lot of work to do,...Ch. 17 - Today is day 4 of the planning cycle. Sequence the...Ch. 17 - Alices Alterations has eight jobs to be completed...Ch. 17 - Jobs A. B, C, and D must be processed through the...Ch. 17 - Sequence the following jobs by (a) SPT, (b) DDATE,...Ch. 17 - Prob. 14PCh. 17 - Claims received by Healthwise Insurance Company...Ch. 17 - Jobs processed through Percys machine shop pass...Ch. 17 - Prob. 17PCh. 17 - Sassy U makes fashion jeans out of a variety of...Ch. 17 - Restore is a small repair shop that makes...Ch. 17 - Precision Painters, Inc., has five house painting...Ch. 17 - Tracy has six chapters on her desk that must be...Ch. 17 - Updike Upholstery cuts and sews fabric for custom...Ch. 17 - The following data have been compiled for an...Ch. 17 - The input/output report for Work Center 6 is as...Ch. 17 - Kim Johnson, R.N., the charge nurse of the...Ch. 17 - Rosemary Hanes needs help in scheduling volunteers...Ch. 17 - Schedule the wail staff at Vincents Restaurant...Ch. 17 - Mr. Baskins, manager of Tom and Jerrys Ice Cream...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- The following jobs are waiting to be processed at JulieMorel’s machine center:JOB DATE ORDER RECEIVED PRODUCTIONDAYS NEEDED DATE ORDER DUEA 110 20 180B 120 30 200C 122 10 175D 125 16 230E 130 18 210 In what sequence would the jobs be ranked according to the fol-lowing rules: (a) FCFS, (b) EDD, (c) SPT, and (d) LPT? All dates are according to shop calendar days. Today on the planning cal-endar is day 130, and none of the jobs have been started or sched-uled. Which rule is best?arrow_forwardA Manufacturing Corp. with three-station work cell has the process displayed below. Each workstation has only one worker to the assigned activity. Single order arrives every 7.5 hours. c) What is the cycle time corresponding to maximum throughput and actual throughput?d) Suppose that a second parallel machine is added at station 2. What is the new bottleneck timeand new throughput time of the system? How did the addition of the second machine at workstation 2 affect the performance of the work cell?arrow_forwardThere are six jobs as below. The processing time (in days) and due date for each job are below. Job |arrow_forwardWhich operation is the bottleneck?arrow_forwardEight jobs have arrived in the following order: Job Processing Time Due Date 1 25 11 12 9 2 3 4 5 6 7 8 9 5 11 st 4 10 7 16 6 18 16 Find and compare the performance measures for the following sequencing rules using the Excel Sequencing template. Round your answers to two decimal places. A. Process in the order they have arrived 24 42 Average Flow Time Lateness Tardiness Average B. Shortest processing time The SPT sequence is 4, 2, 8, 6, 1, 5, 3, 7 Flow Time Lateness Tardiness Average Earliest due date The EDD sequence is 4, 2, 3, 8, 5, 6, 1, 7 Flow Time Lateness Tardinessarrow_forwardEight jobs have arrived in the following order: Job Processing Time Due Date 1 7 23 2 3 9 3 5 8 4 2 11 5 6 16 6 9 18 7 14 40 8 4 31 Find and compare the performance measures for the following sequencing rules using the Excel Sequencing template. Round your answers to two decimal places. Process in the order they have arrived Flow Time Lateness Tardiness Averagearrow_forwardFive customers brought in computers to be repaired to a small shop. Estimated repair times (in days) and dates promised are given below. Due dates were set based on available technicians; however, one technician had a medical emergency and will be unavailable for at least two weeks so processing times were adjusted. Customer job 1 Processing time (days) Due date (days) 6 Use the EDD rule and compute the start time, flow time, lateness, and tardiness for each job. Use minus sign to enter negative lateness values, if any. If your answer is zero, enter "0". Sequence Start Time, days Flow Time, days Lateness, days Tardiness, days -Select- -Select- -Sclect. -Select- -Select- UI 5 LI TE 10 MAarrow_forwardExplain the machine-scheduling problem?arrow_forward9arrow_forwardNVS Episode 3 Recovery and Retention. Create a flow chart that outlines the existing appointment scheduling process through the visit with the BRHS Bright Road Healthcare System, staff and physicians.arrow_forwardJack's Refrigeration Repair Service repairs and reconditions commercial icemakers at restaurants. Jack has four jobs to complete. Below are their processing times and due dates: Job Processing time (hours) Due date (hour) A 20 50 B 10 40 C 15 35 D 55 75 What is the average inventory if jobs are processed using the earliest due date rule?arrow_forwardNote:- 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_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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