Exam 26: Operations Scheduling

Table J.4 Workstation 1 has five jobs waiting to be processed.It is now time 0,and times are expressed in terms of days.All pertinent data are given in the following table. -Using the information in Table J.4 and the FCFS rule,what is the average flow time (in days)?

Table J.17 A company must take on seven new projects.Each project has a planning stage and a design stage,and the planning stage must be completed before the design stage can begin.Also,two project teams are available to work on these projects: Team 1 works only on planning stages of projects,and Team 2 works only on design stages of projects.The times to complete the project stage,in days,are shown in the following table. -Using the information in Table J.17 and Johnson's rule,how much idle time does Team 2 have from the start of the first project through completion of the seventh?

Table J.3 Six jobs have just arrived at workstation 017;which has been idle.All the pertinent data are given in the following table.The shop works eight hours per day.It is now time zero. -Use the information in Table J.3.According to the slack per remaining operations rule (S/RO),which one of the following sequences is most appropriate?

Table J.14 Gable Bakery has five cake orders to be processed today.Each cake has to go through the baking and decorating processes.The baking and decorating times are estimated as follows: -Use the information in Table J.14.If all cakes are to be picked up at 11:00 a.m. ,what is the latest time that Gable should start making these cakes?

Table J.17 A company must take on seven new projects.Each project has a planning stage and a design stage,and the planning stage must be completed before the design stage can begin.Also,two project teams are available to work on these projects: Team 1 works only on planning stages of projects,and Team 2 works only on design stages of projects.The times to complete the project stage,in days,are shown in the following table. -Using the information in Table J.17 and Johnson's rule,develop a schedule that minimizes makespan for these seven jobs.Assume that job C could be neatly split into two equal parts,each having half of the processing time on each machine as the full job C.Using your original sequence,but splitting job C,what is the makespan for the seven jobs?

A(n)________ is the object receiving service or being manufactured.

Table J.1 The framing department has six jobs waiting to be processed.It is now time zero.Times are expressed in terms of days. -Using the information in Table J.1 and the SPT rule,what is the average past due?

Table J.1 The framing department has six jobs waiting to be processed.It is now time zero.Times are expressed in terms of days. -Using the information in Table J.1 and the SPT rule,what is the average flow time?

Table J.4 Workstation 1 has five jobs waiting to be processed.It is now time 0,and times are expressed in terms of days.All pertinent data are given in the following table. -Using the information in Table J.4 and the SPT rule,what is the average days past due?

The sum of scheduled receipts for all items and the on-hand inventories for all items is ________.

Table J.2 Suppose that the following six jobs must be scheduled through a car repair facility: -Use the information in Table J.2.What is the flow time of the last job completed if sequencing is done using the SPT rule?

________ is a priority sequencing rule that determines priority by dividing the difference between the due date and today's date less the processing time remaining by the number of processing steps left to complete the job.

________ specify the job processing sequence when several jobs are waiting in line at a workstation.

Table J.12 Consider the following problems in which six jobs must each be processed on two machines starting with machine 1 and then going to machine 2.The following processing times and due dates are in hours. -Use the information in Table J.12.What is the makespan if the jobs are processed in FCFS order?

Table J.11 Work center Q45 has four jobs that just arrived (the start of Day 1)to be processed,as shown in the following table.Assume the shop works eight hours per day. -Using the information in Table J.11 and the slack per remaining operations ratio (S/RO)rule,what is the average past due?

Table J.10 A workstation has six jobs waiting to be processed.They arrived at the end of Day 0 and it is now the beginning of Day 1.It is now time zero.Times are expressed in terms of days. -Using the information in Table J.10 and the earliest due date EDD)rule,what is the average flow time?

Table J.5 The following three jobs just arrived (end of hour 0)at Workstation A.They are the only ones waiting to be processed. -Use the information in Table J.5.The operations sequence of jobs,using the critical ratio (CR)rule,is

What are single-dimension scheduling rules? Provide examples and discuss how each rule performs.

Table J.2 Suppose that the following six jobs must be scheduled through a car repair facility: -Use the information in Table J.2.Which one of the following jobs will be the first one completed if sequencing is done using the EDD rule?

Sometimes referred to as the world champion,the ________ rule is a priority sequencing rule that minimizes the mean flow time and tends to maximize utilization.