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A machining center has the following small jobs from five of its customers. The jobs are listed in the order in which they were received. Each job requires a certain amount of setup time in addition to its processing time. Job names refer to the names of the customers. Note that the job completion time is the sum of the total processing time for cach job and its setup time: FCFS Processing Time (in Number of hours per unit) 0.14 Setup Time Due Date (in hours) Processing Time (in Number of hours per unit) 0.14 Due Date (in hours) 5 Job Job Setup Time Units Units Patel 50 5 Patel 50 Smith 0.2 17 1.6 11 Smith 0.2 17 1.6 11 15 Lopez Garcia Chen 0.15 0.75 13 Lopez 0.15 15 0.75 13 0.3 45 0.5 23 Garcia 0.3 45 0.5 23 17 0.1 90 17 Chen 0.1 90 Use the following sequencing rules to determine the order in which the jobs should be processed: FCFS, EDD, SPT, and CR. For each of these rules, determine the average flow itme, and average job tardiness, and the average number of jobs EDD Processing Time (in Number of hours per unit) 0.14 Due Date (in in this machining center. Job Setup Time Units 50 hours) Patel 5 Smith 0.2 17 1.6 11 Lopez 0.15 15 0.75 13 Chen 0.1 90 17 Garcia 0.3 45 0.5 23

A machining center has the following small jobs from five of its customers. The jobs are listed in the order in which they were received. Each job requires a certain amount of setup time in addition to its processing time. Job names refer to the names of the customers. Note that the job completion time is the sum of the total processing time for cach job and its setup time: FCFS Processing Time (in Number of hours per unit) 0.14 Setup Time Due Date (in hours) Processing Time (in Number of hours per unit) 0.14 Due Date (in hours) 5 Job Job Setup Time Units Units Patel 50 5 Patel 50 Smith 0.2 17 1.6 11 Smith 0.2 17 1.6 11 15 Lopez Garcia Chen 0.15 0.75 13 Lopez 0.15 15 0.75 13 0.3 45 0.5 23 Garcia 0.3 45 0.5 23 17 0.1 90 17 Chen 0.1 90 Use the following sequencing rules to determine the order in which the jobs should be processed: FCFS, EDD, SPT, and CR. For each of these rules, determine the average flow itme, and average job tardiness, and the average number of jobs EDD Processing Time (in Number of hours per unit) 0.14 Due Date (in in this machining center. Job Setup Time Units 50 hours) Patel 5 Smith 0.2 17 1.6 11 Lopez 0.15 15 0.75 13 Chen 0.1 90 17 Garcia 0.3 45 0.5 23

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
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A machining center has the following small jobs from five |of its customers. The jobs are listed in the order in which they were received. Each job requires a certain amount of setup time in addition to its processing time. Job names refer to the names of the customers. Note that the job completion time is the sum of the total processing time for each job and its setup time: FCFS Processing Time (in Number of hours per unit) Processing Time (in Number of hours per unit) Due Date (in Due Date (in Job Setup Time Job Setup Time Units hours) Units hours) Patel 0.14 50 1 5 Patel 0.14 50 1 5 Smith 0.2 17 1.6 11 Smith 0.2 17 1.6 11 Lopez 0.15 15 0.75 13 Lopez 0.15 15 0.75 13 Garcia 0,3 45 0,5 23 Garcia 0.3 45 0.5 23 Chen 0.1 90 17 Chen 0.1 90 1 17 Use the following sequencing rules to determine the order in which the jobs should be processed: FCFS, EDD, SPT, and CR. For each of these rules, determine the average flow itme, and average job tardiness, and the average number of jobs EDD Processing Time (in Number of hours per unit) Due Date (in in this machining center. Job Setup Time Units hours) Patel 0,14 50 1 5 Smith 0.2 17 1.6 11 Lopez 0.15 15 0.75 13 Chen 0.1 90 1 17 Garcia 0.3 45 0.5 23 SPT Processing Time (in Number of Due Date (in Job Setup Time hours per unit) Units hours) Lopez 0.15 15 0.75 13 Smith 0.2 17 1.6 11 Patel 0.14 50 1 5 Chen 0.1 90 1 17 Garcia 0.3 45 0.5 23 FCFS Processing Time (in Number of Due Date (in Job Setup Time hours per unit) Units hours) Patel 0.14 50 1 5 Garcia 0.3 45 0.5 23 Chen 0.1 90 1 17 Smith 0.2 17 1.6 11 Lopez 0.15 15 0.75 13
Transcribed Image Text:A machining center has the following small jobs from five |of its customers. The jobs are listed in the order in which they were received. Each job requires a certain amount of setup time in addition to its processing time. Job names refer to the names of the customers. Note that the job completion time is the sum of the total processing time for each job and its setup time: FCFS Processing Time (in Number of hours per unit) Processing Time (in Number of hours per unit) Due Date (in Due Date (in Job Setup Time Job Setup Time Units hours) Units hours) Patel 0.14 50 1 5 Patel 0.14 50 1 5 Smith 0.2 17 1.6 11 Smith 0.2 17 1.6 11 Lopez 0.15 15 0.75 13 Lopez 0.15 15 0.75 13 Garcia 0,3 45 0,5 23 Garcia 0.3 45 0.5 23 Chen 0.1 90 17 Chen 0.1 90 1 17 Use the following sequencing rules to determine the order in which the jobs should be processed: FCFS, EDD, SPT, and CR. For each of these rules, determine the average flow itme, and average job tardiness, and the average number of jobs EDD Processing Time (in Number of hours per unit) Due Date (in in this machining center. Job Setup Time Units hours) Patel 0,14 50 1 5 Smith 0.2 17 1.6 11 Lopez 0.15 15 0.75 13 Chen 0.1 90 1 17 Garcia 0.3 45 0.5 23 SPT Processing Time (in Number of Due Date (in Job Setup Time hours per unit) Units hours) Lopez 0.15 15 0.75 13 Smith 0.2 17 1.6 11 Patel 0.14 50 1 5 Chen 0.1 90 1 17 Garcia 0.3 45 0.5 23 FCFS Processing Time (in Number of Due Date (in Job Setup Time hours per unit) Units hours) Patel 0.14 50 1 5 Garcia 0.3 45 0.5 23 Chen 0.1 90 1 17 Smith 0.2 17 1.6 11 Lopez 0.15 15 0.75 13
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