a) Using the FCFS (first come, first served) decision rule for sequencing the jobs, theorder is (assume that jobs came in the order in which they are listed in the table):Sequence12345JobABCDEThe average tardiness (job lateness) for the sequence developed using the FCFS rule =days (round your response to two decimal places).The following jobs are waiting to be processed at the same machine center. Jobsare logged as they arrive:JobABCDEDue Date315313312325314Duration (days)38165All dates are specified as manufacturing planning calendar days. Assume that alljobs arrive on day 275. Assume each job starts at the beginning of the day andfinishes at the end of the day (a job that begins on day 275 and takes 8 days willfinish on day 282, and the next job begins in the morning of day 283). Compute alltimes based on initiating work on day 275.

Job sequencing is a pivotal concept within the realm of operations management, playing a crucial…

Answered: a) Using the FCFS (first come, first…

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...

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2. The operations manager of an assembly and paint shop has five trucks to schedule for repair. He would like to minimize the throughput time (makespan) to complete all work on these cars. Each truck requires assembly prior to painting. The estimates of the times required to do the assembly and paint work on each are as follows:Use Johnson's rule to sequence these five jobs for minimum total duration. Show your step by step work in determining the job sequence and calculate the total duration of finishing assembly and painting operations on all the five trucks ?
The company has received 7 special jobs. These jobs have to go through Process X, Process Y and then Process Z in sequence. Each of the processes is operated by a dedicated machine. What is the optimal sequence to schedule the jobs? Show your steps. If there is more than one optimal sequence under the adapted Johnson’s rule, show them all.
The following jobs are waiting to be processed at Jeremy LaMontagne's machine center. Today is day 250. Using the critical ratio scheduling rule, in what sequence would the jobs be processed?
Five jobs are ready for processing at time zero through a workstation. The details regarding the processing time and the due date of completion is provided in the following table. Job Processing Time (days) Due Date A 6 10 B 5 17 C 2 13 D 3 9 E 4 15 Using the earliest due date (EDD) rule, the average tardiness of the five jobs is:
Eight 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 Average
Job Processing time (Days) Job Due Date (Days) A 12 18 14 23 C 7 15 2 7 There are painting jobs awaiting at a paint shop. Their processing times and due dates are shown in the table. The firm wants to determine the sequence of jobs according to shortest processing time (SPT). Jobs are assigned a letter in the order day arrived. The utilization is _%. Today is day 1 and work begins today.
K Courtney is a programmer receiving requests each week to analyze a large data base. Five jobs were on her desk Monday morning, and she must decide in what order to write the code. Assume that all jobs arrived today (day 1 and hour 1), in the order shown below. Courtney has assigned the number of hours required to do the coding as noted. Note that Courtney works an 8-hour day and today is a work day. JOB A C D E DUE DATE (HOURS HENCE) 10 16 14 36 26 DURATION (HOURS REQUIRED) 6 3758 a) Sequence the jobs according to EDD. According to the EDD rule, the sequence of jobs should be A, C, B, E, D b) What is the average completion (flow) time? The average completion (flow) time is days (round your response to one decimal place).
Courtney is a programmer receiving requests each week to analyze a large data base. Five jobs were on her desk Monday morning, and she must decide in what order to write the code. Assume that all jobs arrived today (day 1 and hour 1), in the order shown below. Courtney has assigned the number of hours required to do the coding as noted. Note that Courtney works an 8-hour day and today is a work day. DURATION (HOURS REQUIRED) 14 7 2 JOB ABCDE DUE DATE (HOURS HENCE) 36 14 16 6 26 6 10 a) Sequence the jobs according to EDD. According to the EDD rule, the sequence of jobs should be D, B, C, E, A. b) What is the average completion (flow) time? The average completion (flow) time is 19.6 days (round your response to one decimal place). c) What is the average job lateness? The average job lateness is 0.6 days (round your response to one decimal place). d) What is the average number of jobs in the system? The average number of jobs in the system is jobs (round your response to one decimal…
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.
Five jobs are ready for processing at time zero through a workstation. The details of the processing time and the due date of completion is provided in the following table. Job A B Processing Time (days) I5 Due Date 11 6 3 16 19 10 D E 15 Using the earliest due date (EDD) rule, the average lateness for the five jobs is decimal place. Round your answer to one Your Answer: Answer
Ron Satterfield's excavation company uses both Gantt scheduling charts and Gantt load charts. Today, which is the end of day 7, Ron is reviewing the Gantt chart depicting these schedules: Job #151 was scheduled to begin on day 3 and to take 7 days. It got started on time and is 1 day ahead of schedule. Job #177 was scheduled to begin on day 3 and take 5 days. It is currently on time. Job #179 was scheduled to start on day 6 and take 3 days. It actually got started on day 5 and is progressing according to plan. Job #211 was scheduled to begin on day 5, but missing equipment delayed it until day 6. It is progressing as expected and should take 3 days. Job #215 was scheduled to begin on day 4 and take 5 days. It got started on time but has since fallen behind 2 days. This exercise contains only part a. a) Add the actual progress to the Gantt schedule shown on the right (on which the planned timings have been already plotted as blue lines). Using the line drawing tool, plot the actual…
Five 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 MA

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