Question 1

Explain why any sequence chosen in the single-machine scheduling problem will not change makespan time.

Accepted Answer

The total processing time for all jobs is constant; it is simply the sum of the individual processing times, which is sequence independent. M = C - S where
M = makespan of a group of jobs
C = completion time of last job in the group
S = start time of first job in the group
so it doesn't change.

Question 2

The SPT sequencing rule will maximize the average flow time.

Accepted Answer

A) True 
 B)False  False

Question 3

What four (4) decisions are considered in designing an appointment system?

Accepted Answer

Service capacity is perishable and appointment systems improve resource utilizations and revenue generation, and reduce customer waiting time. Lawyers, insurance agents, personal trainers, physicians, cable and telephone installers, tax preparers, dentists, investment advisors and consultants are examples of where appointment systems benefit both the customer and service-provider. The four major decisions required to design an appointment system as described in the text are:
1.Determine the appointment time interval
2.Determine the length of each workday and the time off-duty
3.Decide how to handle overbooking
4.Develop customer appointment rules

Question 4

Flow time is the amount of time a job spends in a shop or factory.

Accepted Answer

A) True 
 B)False

Question 5

Scheduling refers to specifying

Accepted Answer

A) The sequence that jobs must be completed 
B) The due date for each job 
C) The start and completion times of jobs 
D) The makespan of each job 
A) The sequence that jobs must be completed 
B) The due date for each job 
C) The start and completion times of jobs 
D) The makespan of each job

Question 6

Like the SPT rule, the earliest due date (EDD) rule minimizes the average flow time.

Accepted Answer

A) True 
 B)False

Question 7

At the end of each month, a research and development team writes status reports for the projects worked on during the month. The team leaders, Andrew and Julie, submit the reports to the R&D director on the first Monday of each month. It is late Friday evening and to their surprise, they have discovered that the month ends on Sunday and the reports are due on Monday morning. They have decided to come to work early Saturday morning, so they can finish the reports before Monday morning. They split the work as follows: Andrew will write and edit the reports while Julie collates data and draws all the necessary graphs. Assume that Julie starts her work on a report as soon as Andrew is finished with it and that Andrew works continuously. Times for the reports (in hours) are as follows:   
a.What is the order of the projects using Johnson's rule?
b.How many hours will it take them to finish all the reports?
c.How many hours is Andrew idle?
d.How many hours is Julie idle?

Accepted Answer

a.Order of jobs using Johnson's rule: B,

Question 8

Appointments can be viewed as a reservation of service time and capacity.

Accepted Answer

A) True 
 B)False

Question 9

Scheduling problems occur almost exclusively in manufacturing.

Accepted Answer

A) True 
 B)False

Question 10

Sequencing is not as much of a concern when several activities use a common resource.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is not a criterion for evaluating job sequencing rules?

Accepted Answer

A) average flow time 
B) lateness 
C) tardiness 
D) sum of processing times 
A) average flow time 
B) lateness 
C) tardiness 
D) sum of processing times

Question 12

Describe Johnson's sequencing rule for the two-resource sequencing problem.

Accepted Answer

1.List the jobs and their processing tim

Question 13

UPS, the world's largest package delivery company, is highly dependent on scheduling but not sequencing.

Accepted Answer

A) True 
 B)False

Question 14

Short-term capacity fluctuations necessitate changes in schedules. List at least five factors affecting short-term capacity.

Accepted Answer

1.Employee absenteeism (and tu

Question 15

A new surgical facility called Cut & Sew is opening in neighborhoods throughout the United States. They are job shops that handle a variety of outpatient surgical procedures. Their process is set up so that one doctor cuts and the other sews. They have five patients to sequence for tomorrow. Since the weather forecast is for a cool and sunny day, they would also like to play golf tomorrow. They want to sequence their patients with the objective of minimizing the time from the beginning of the first job until the finish of that job. The patients and estimated times are as follows:   Sequence the patients using Johnson's Method, state the schedule for each operation, and determine the minimum makespan.

Accepted Answer

D A B E C

Question 16

The Shortest Processing Time (SPT) rule

Accepted Answer

A) Ensures that due dates are met 
B) Maximizes average flow-time 
C) Minimizes resource utilization 
D) Minimizes work in process inventory 
A) Ensures that due dates are met 
B) Maximizes average flow-time 
C) Minimizes resource utilization 
D) Minimizes work in process inventory

Question 17

Which of the following is not a consideration when designing an appointment system?

Accepted Answer

A) Determining the appointment time interval 
B) Determining the appropriate sequencing rule 
C) Determining the length of each workday and the time off-duty 
D) Deciding on an overbooking policy 
A) Determining the appointment time interval 
B) Determining the appropriate sequencing rule 
C) Determining the length of each workday and the time off-duty 
D) Deciding on an overbooking policy

Question 18

Staff scheduling needs all of the following except

Accepted Answer

A) Flow-time estimates 
B) Accurate forecasting 
C) Staffing levels required by time period 
D) Determining available personnel 
A) Flow-time estimates 
B) Accurate forecasting 
C) Staffing levels required by time period 
D) Determining available personnel

Question 19

Give at least five examples of service organizations (and employee type) where, due to high variability in customer demand, staff scheduling problems are prevalent.

Accepted Answer

1.Call center (service represe

Question 20

The sequencing rule that minimizes the maximum number of jobs that are past due from a given set of jobs is

Accepted Answer

A) Shortest processing time 
B) Earliest due date 
C) First come, first served 
D) Least work remaining 
A) Shortest processing time 
B) Earliest due date 
C) First come, first served 
D) Least work remaining

Explain why any sequence chosen in the single-machine scheduling problem will not change makespan time.

The SPT sequencing rule will maximize the average flow time.

What four (4) decisions are considered in designing an appointment system?

Flow time is the amount of time a job spends in a shop or factory.

Scheduling refers to specifying

Like the SPT rule, the earliest due date (EDD) rule minimizes the average flow time.

Appointments can be viewed as a reservation of service time and capacity.

Scheduling problems occur almost exclusively in manufacturing.

Sequencing is not as much of a concern when several activities use a common resource.

Which of the following is not a criterion for evaluating job sequencing rules?

Describe Johnson's sequencing rule for the two-resource sequencing problem.

UPS, the world's largest package delivery company, is highly dependent on scheduling but not sequencing.

Short-term capacity fluctuations necessitate changes in schedules. List at least five factors affecting short-term capacity.

The Shortest Processing Time (SPT) rule

Which of the following is not a consideration when designing an appointment system?

Staff scheduling needs all of the following except

Give at least five examples of service organizations (and employee type) where, due to high variability in customer demand, staff scheduling problems are prevalent.

The sequencing rule that minimizes the maximum number of jobs that are past due from a given set of jobs is

Goods, Services, and Operations Management

Value Chains

Measuring Performance in Operations

Operations Strategy

Technology and Operations Management

Goods and Service Design

Process Selection, Design, and Analysis

Facility and Work Design

Supply Chain Design

Capacity Management

Forecasting and Demand Planning

Managing Inventories

Resource Management

Quality Management

Quality Control and Spc

Lean Operating Systems

Project Management

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Exam 14: Operations Scheduling and Sequencing

Explain why any sequence chosen in the single-machine scheduling problem will not change makespan time.

The SPT sequencing rule will maximize the average flow time.

What four (4) decisions are considered in designing an appointment system?

Flow time is the amount of time a job spends in a shop or factory.

Scheduling refers to specifying

Like the SPT rule, the earliest due date (EDD) rule minimizes the average flow time.

Appointments can be viewed as a reservation of service time and capacity.

Scheduling problems occur almost exclusively in manufacturing.

Sequencing is not as much of a concern when several activities use a common resource.

Which of the following is not a criterion for evaluating job sequencing rules?

Describe Johnson's sequencing rule for the two-resource sequencing problem.

UPS, the world's largest package delivery company, is highly dependent on scheduling but not sequencing.

Short-term capacity fluctuations necessitate changes in schedules. List at least five factors affecting short-term capacity.

The Shortest Processing Time (SPT) rule

Which of the following is not a consideration when designing an appointment system?

Staff scheduling needs all of the following except

Give at least five examples of service organizations (and employee type) where, due to high variability in customer demand, staff scheduling problems are prevalent.

The sequencing rule that minimizes the maximum number of jobs that are past due from a given set of jobs is

Goods, Services, and Operations Management

Value Chains

Measuring Performance in Operations

Operations Strategy

Technology and Operations Management

Goods and Service Design

Process Selection, Design, and Analysis

Facility and Work Design

Supply Chain Design

Capacity Management

Forecasting and Demand Planning

Managing Inventories

Resource Management

Quality Management

Quality Control and Spc

Lean Operating Systems

Project Management

Filters