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The following table shows orders to be processed at a machine shop as of 8:00 a.m. Monday. The jobs have different operations they must go through. Processing times are in days. Jobs are listed in order of arrival. Job Processing Time (Days) Due Date (Days) Remaining Number of Operations A 8 20 2 B 10 18 4 C 5 25 5 D 11 17 3 E 9 35 4 Click here for the Excel Data File a. Determine the processing sequence at the first work center using each of these rules: (1) First come, first served, (2) Slack per operation. (Hint: In case of a tie choose the jobs in alphabetical order.) b. Compute the effectiveness of each rule using each of these measures: (1) average completion time, (2) average number of jobs at the work center. (Round your answers to 2 decimal places.)

The following table shows orders to be processed at a machine shop as of 8:00 a.m. Monday. The jobs have different operations they must go through. Processing times are in days. Jobs are listed in order of arrival. Job Processing Time (Days) Due Date (Days) Remaining Number of Operations A 8 20 2 B 10 18 4 C 5 25 5 D 11 17 3 E 9 35 4 Click here for the Excel Data File a. Determine the processing sequence at the first work center using each of these rules: (1) First come, first served, (2) Slack per operation. (Hint: In case of a tie choose the jobs in alphabetical order.) b. Compute the effectiveness of each rule using each of these measures: (1) average completion time, (2) average number of jobs at the work center. (Round your answers to 2 decimal places.)

Practical Management Science
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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The following table shows orders to be processed at a machine shop as of 8:00 a.m. Monday. The jobs have different operations they must go through. Processing times are in days. Jobs are listed in order of arrival. Job Processing Time (Days) Due Date (Days) Remaining Number of Operations A 8 20 2 B 10 18 4 C 5 25 5 D 11 17 3 E 9 35 4 Click here for the Excel Data File a. Determine the processing sequence at the first work center using each of these rules: (1) First come, first served, (2) Slack per operation. (Hint: In case of a tie choose the jobs in alphabetical order.) b. Compute the effectiveness of each rule using each of these measures: (1) average completion time, (2) average number of jobs at the work center. (Round your answers to 2 decimal places.)
c-1. Determine a sequence that will minimize the total time needed to process the jobs in both departments. The sequence is c-2. What total flow time will result for the grinding department? Grinding's job flow time C-B-A-F-E-D-G Makespan 64 hours c-3. What is the makespan to process the seven jobs in both the grinding and deburring department, based on your job order in c-1? 64 hours
Transcribed Image Text:c-1. Determine a sequence that will minimize the total time needed to process the jobs in both departments. The sequence is c-2. What total flow time will result for the grinding department? Grinding's job flow time C-B-A-F-E-D-G Makespan 64 hours c-3. What is the makespan to process the seven jobs in both the grinding and deburring department, based on your job order in c-1? 64 hours
Job DABCDEFG с PROCESSING TIME (hours) Grinding Deburring 32L4986 1 64532 7 2 Click here for the Excel Data File Check my work a. Prepare a schedule using SPT for the grinding department. The sequence is C-B-A-D-G-F-E b-1. What is the total flow time in the grinding department for the SPT sequence?
Transcribed Image Text:Job DABCDEFG с PROCESSING TIME (hours) Grinding Deburring 32L4986 1 64532 7 2 Click here for the Excel Data File Check my work a. Prepare a schedule using SPT for the grinding department. The sequence is C-B-A-D-G-F-E b-1. What is the total flow time in the grinding department for the SPT sequence?
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