Using Johnson's rule for 2-machine scheduling, the sequence is:Scheduled OrderJob12311456For the schedule developed using Johnson's rule, the total length of time taken to complete the sixjobs (including the 2nd operation) = hours (enter your response as a whole number).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:JobAamoa I -BCDEOperation1 (hours)41031467Operation2 (hours)85111214

According to the Johnson’s Rule i- Here each jobs & its time duration for each work center are…

Answered: Using Johnson's rule for 2-machine…

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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Use Johnson's rule to determine the optimal processing sequence for the jobs listed in the following table. JOB F has the ABCDEFG Processing Time (mins) ST1 30 8 10 18 5 15 14 ST2 12 16 9 7 4 5 20 Please write the optimal processing sequence for the six jobs:
In an evaluation of labor assignment rules when workers are not perfectly interchangeable, Paul. M. Bobrowski and Paul Sungchil Park created a dynamic job shop with 9 work centers and 9 workers, both numbered 1–9. The efficiency of each worker is specified in the following labor efficiency matrix, which represents the degree of worker cross-training.† Work Centers 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 W o r k e r s (a) For what work center(s) is worker 2 least efficient? (Enter your answers as a comma-separated list.) (b) For what…
Which simple scheduling concept can be applied to help schedule workers for a service operation with changing stafi ng requirements throughout the day?
The following jobs are waiting to be processed atJeremy LaMontagne’s machine center. Today is day 250. Using the critical ratio scheduling rule, in what sequencewould the jobs be processed?
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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.
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3) to final assembly for an important customer order. Currently, all eight jobs are in department X and must be routed to department Y after processing. The processing times (in days) for each job in each department follow: The machine shop of Reliable Manufacturing has to schedule eight jobs that are to be sent Dept/Job Dept. X Dept. Y A B C D E F G H 2 4 7 5 4 10 3 3 8 2 6 5 Develop two schedules for operations in both departments. For your first schedule, use the SPT priority rule (based on X). Your second schedule should be based on Johnson's Rule. Compare the two schedules using average flow time, makespan, and average WIP inventory. Use a Gantt chart to display your schedules (i.e. a timeline).
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At the campus copy shop, six jobs have a rrived in the order shown (A, B, C, D, E, and F) at the beginning of the day (today, which is a workday). All of the jobs are due at varioustimes today. Your task is to evaluate four common sequencing rules. a) Sequence the jobs according to the following decision rules:FCFS, EDD, SPT, and LPT.b) For the FCFS sequence, compute the average completion (flow) time, average lateness, and average number of jobs in the system.c) For the EDD sequence, compute the average completion (flow) time, average lateness, and average number of jobs in the system.d) For the SPT sequence, compute the average completion (flow) time, average lateness, and average number of jobs in the system. e) For the LPT sequence, compute the average completion (flow)time, average lateness, and average number of jobs…
The following table contains information regarding jobs that are to be scheduled through one machine: Job Processing Time (Days) Due date A 4 20 B 12 30 C 2 15 D 11 16 E 10 18 F 3 5 G 6 9 Qus 1: Find the FCFS Schedule? Qus 2: Find the SOT Schedule? Qus 3:Find the DDate Schedule? Qus 4: What are the mean flow time and average lateness for each of the schedule above? Qus 5: Which priority rule is appropriate for job scheduling? Justify your answer.
A manufacturer is designing a product layout for a new product productionIt plans to use a production line for 8 hours per day in order to meet forecasted demand of 70 units per day. The product requires 7 tasks in total. These tasks are namelyABC, D, E, F, and Grespectively. Task A does not have any predecessor to startTo start Task B.it requires Task A to be completedStarting tasks needs, the task B to be completed. Also, starting task Dneeded task B to be completed. Task E can only start upon completion of Task C. Whereas starting task F needs the completion of both the tasks D and E. Finally, starting task G needed task Fto be completed. The processing times for tasks, ABC, D. E. and G are 2.8, 2.1, 0.9, 1.0, 1.2, 1.8 and 4.7 minutes respectively. What should be the cycle time in minutes? a 4.7 b. None is the correct answer Oc 7.5 d6.86 e.

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