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Jobs processed through Percy’s machine shop pass through milling first, and then turning. The current backlog of jobs and hours required at each machine follow.
Sequence the jobs so that the entire set of jobs is completed as soon as possible. Make a Gantt chart to map out the
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- Using the information presented in the following table, identify the processing sequence that wouldresult using (1) FCFS, (2) SPT, (3) EDD, and (4) CR. For each method, determine (1) average jobflow time, (2) average job tardiness, and (3) average number of jobs in the system. Jobs are listedin order of arrival. (Hint: First determine the total job time for each job by computing the total processing time for the job and then adding in the setup time. All times and due dates are in hours.)JobProcessingTime per UnitUnitsper JobSetupTimeDueDatea .14 45 0.7 4b .25 14 0.5 10c .10 18 0.2 12d .25 40 1.0 20e .10 75 0.5 15arrow_forwardUpdike Upholstery cuts and sews fabric for customordered chairs, ottomans, and sofas. Often, the more com-plicated patterns are for the smaller pieces, where cuttingis more time consuming than sewing. Thus, cutting andsewing times vary. Today’s list of jobs, shown below, arefor an important customer who needs them shipped out(in one shipment) as soon as possible. Determine thesequence of jobs that will complete the customer’s orderas quickly as possible, and notify the customer when theorder is expected to ship.arrow_forwardHow do you schedule 100 regular manufacturing employees working four to six-hour shifts and three skilled employees on a typical plant process? Each machine and employee must be scheduled over the day and the standard time for planning is an hour?arrow_forward
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- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,