Exam 10: Operations Planning and Scheduling

Use the information in the preceding table and sequence the seven jobs using first come,first served (FCFS)and earliest due date (EDD).Calculate the average flow time and average past due.It is now time 5.

Table 10.5 The daily requirements for highway patrol officers at Park City over the week are: Each officer works five days a week and must have two consecutive days off. -Use the information in Table 10.5.What is the minimum number of officers required if preference is given to the pair S-SU in case of a tie in the selection of off days?

Table 10.1 Bart Incorporated manufactures rotary air fans and uses a production-planning horizon of one-half year.It allows for regular time,part time,overtime,and subcontracting production to meet the demand but no more than 12 units may be made by each of these methods.Both anticipation inventory and backorders are allowed.The beginning (or current)inventory is 20 units.Their first attempt at a sales and operations plan has resulted in the following. -Use the information in Table 10.1.Which of these changes would result in the greatest improvement (in terms of total cost)for the production plan?

Table 10.4 Gable Express Co.provides delivery service seven days a week.The daily requirements (in workers)are estimated as follows: Each worker is required to work five days per week,and each must have two consecutive days off. -Use the information in Table 10.4.How much total slack will be generated from the schedule?

A(n)________ strategy involves hiring and laying off employees to match the demand forecast over the planning horizon.

What is anticipation inventory and what are the benefits and drawbacks of having it?

Table 10.3 A large distribution center uses some part-time employees in its workforce.Each part-time employee works a maximum of 80 hours per month.The workforce requirements (expressed as the number of part-time employees working the maximum regular time of 80 hours per month)are given in the following table for the next six periods. The relevant costs are: Wages = $350/month/worker Hiring cost = $100/worker Layoff cost = $ 50/worker Overtime cost = 150% of regular-time rate The current workforce level is 60,and overtime cannot exceed 25% of regular-time capacity. Use the spreadsheet approach to answer the following questions. -Use the information in Table 10.3.The total cost of the staffing plan,including the cost of regular wages,hiring,and layoffs,using a chase strategy with hiring and layoffs but no overtime,is:

Table 10.4 Gable Express Co.provides delivery service seven days a week.The daily requirements (in workers)are estimated as follows: Each worker is required to work five days per week,and each must have two consecutive days off. -Use the information in Table 10.4.What is the minimum number of workers required if preference is given to the pair S-SU in case of a tie in the selection of off days?

A sales and operations plan for a service firm is:

________ is the situation that occurs when employees work longer than the regular workday or workweek.

Flow time is only the time a job spends being processed,and excludes any time waiting to be processed,equipment set up time and time spent moving between operations.

What is the impact of the sales and operations plan on the human resources and finance functions of a firm?

Table 10.8 Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days): -Use the information in Table 10.8 to answer this question.What car is repaired the latest (the most past due)if an EDD sequence is obeyed?

Table 10.8 Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days): -Use the information in Table 10.8 to answer this question.Which job retains the same position in both an EDD and an SPT sequence?

Choose any service and provide examples of how they can use a chase strategy for sales and operations planning.

An aggressive advertising campaign was credited with K-Tel's inability to keep K-Fed's latest CD on the shelves.K-Tel continued to accept orders and promised to ship as soon as they could burn new discs.Customers weren't happy,but were willing to wait.This unfortunate situation can be described as a:

How can the workforce be aggregated?

Table 10.10 A work center has the following six jobs waiting to be processed (all times are shown in days): -Use the information in Table 10.10.Which job will be the first one completed if scheduling is done using the earliest due date (EDD)rule?

Table 10.1 Bart Incorporated manufactures rotary air fans and uses a production-planning horizon of one-half year.It allows for regular time,part time,overtime,and subcontracting production to meet the demand but no more than 12 units may be made by each of these methods.Both anticipation inventory and backorders are allowed.The beginning (or current)inventory is 20 units.Their first attempt at a sales and operations plan has resulted in the following. -Use the information in Table 10.1.According to the production plan,what is the unused overtime capacity in the fourth period?

________ is the situation that occurs when employees do not have enough work for the regular workday or workweek.