Using Johnson's rule for 2-machine scheduling, the sequence is:Scheduled OrderJob4ABFEDCSix 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:JobABCDFFOperation 1(hours)41031467Operation 2(hours)851114112

Given the data stated below, Job Operation 1(Hours) Operation 2(Hours) A 4 8 B 10 5 C 3 11…

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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Ron Satterfield's excavation company uses both Ganit 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 5 days. It got started on time and is 1 day ahead of schedule. Job #177 was scheduled to begin on day 1 and take 4 days. It is currently on time. Job #179 was scheduled to start on day 6 and take 2 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 5 and take 5 days. It got started on time but has since fallen behind 1 day. 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…
Using the FCFS rule for scheduling, the sequence is 1-2-3. For the schedule developed using the FCFS rule, the total length of time taken to complete the three suits (including delivery) = hours (enter your response as a whole number). Sunny Park Tailors has been asked to make three different types of wedding suits for separate customers. The table below highlights the time taken in hours for cutting and sewing (process 1) and delivery (process 2) of each of the suits. Times Taken for Different Activities (hours) Cut and Sew Suit 1 2 3 6 5 8 Deliver 324 2 4 Assume that orders for suits have been listed in the above table in the order in which they were received.
At an auto shop, six jobs are currently in queue. Job A B C D E F Arrival order 1 2 3 4 5 6 Processing time (minutes) 33 27 36 28 21 23 Using the shortest processing time scheduling approach, what is the average inventory of jobs in the system? Assume that processing of jobs will start immediately. Note: Round your answer to 2 decimal places.
Currently a company that designs Web sites has five customers in its backlog. The time since the order arrived, processing time, and promised due dates are given in the following table. The customers are ready to be scheduled today, which is the start of day 190. Customer Time Since Order Arrived (days ago) Processing Time (days) Due Date (days from now) Upper AA 6 18 66 Upper BB 3 24 58 Upper CC 2 32 100 Upper DD 10 22 26 Upper EE 8 12 50 a. Develop separate schedules by using the FCFS and EDD rules. Compare the schedules on the basis of average flow time and average days past due. Part 2 Using the FCFS (first come, first served) decision rule for sequencing the customers, the order is: Sequence 1 2 3 4 5 Customer D E A B C Part 3 Using…
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.
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…
What method uses more processing time and resources: preemptive or non-preemptive scheduling?
How to solve scheduling issues
The following jobs are waiting to be processed at the same machine center. Jobs are logged as they arrive: In what sequence would the jobs be ranked according to the following decision rules: (a) FCFS, (b) EDD, (c) SPT, and (d) LPT? Alldates are specified as manufacturing planning ca.lendar days. Assumethat all jobs arrive on day 275. Which decision is best and why?
K Using Johnson's rule for 2-machine scheduling, the sequence is: Scheduled Order Job C A 1 2 3 4 5 6 F D B E For the schedule developed using Johnson's rule, the total length of time taken to complete the six jobs (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: Job A B C D E F Operation 1 (hours) 4 10 3 14 6 7 Operation 2 (hours) 8 5 11 14 1 12
Five welding jobs are waiting to be processed. Their processing times and due dates are given below. Using the critical ratio dispatching rule, in which order should the jobs be processed? All dates are specified as days from today. A B, D, A, E, C B C, E, A, D, B C E, B, A, D, C D C, D, A, B, E Job A B Processing Time (days) 4 2 Job due date (days) 7 4 C 8 11 D 3 5 E 5 11
The following jobs are waiting to be processed at a small machine center; JOB 10 20 30 40 50 days (round your response to one decimal place). DUE DATE 260 254 260 265 275 days (round your response to one decimal place). DURATION (DAYS) All dates are specified as manufacturing planning calendar days. Assume that all jobs arrived on day 200 (yesterday) in the order shown but are not scheduled to begin until day 201 (today). a) Sequence the jobs according to LPT. According to the LPT rule, the sequence of jobs should be 50, 20, 10, 30, 40 b) What is the average completion (flow) time? The average completion (flow) time is c) What is the average job lateness? The average job lateness is 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 place). 18 22 14 4 32

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Using Johnson's rule for 2-machine scheduling, the sequence is: Scheduled Order Job 1 A B LL F E D C