Final Supply Chain 16

Question 1

What is scheduling

Answer 1

Pertains to establishing the timing of the use of that organizations resources. The use of equipment facilities and human activities Scheduling decisions are the final step in the transformation process before actual output occurs.

Question 2

What are impacts of effective scheduling

Answer 2

Can yield call saving increase in productivity and other benefits can reduce the need for expansion of faciliddy’s can give a company a competitive advantage in terms of customer service shorter. Wait times
Efficient utilization of staff equipment facilities and minimization of customer waiting time, inventories and process times

Question 3

What is the goal of scheduling

Answer 3

Obtain a smooth flow of goods or customers through the system to get a high utilization of labor and equipment.

Question 4

What is a low volume system (job shops)

Answer 4

Products are made to order and services are performed according to need orders differ considerably in. Terms of processing requirements, materials needed processing time and processing sequence and setup.

Question 5

What are two important issues for schedulers in low volume job shop systems

Answer 5

How to distribute the work load among work centers? And what job processing sequence to use?

Question 6

What is loading?

Answer 6

Refers to the assignment of jobs to processing (work) centers. Loading decisions involve assigning specific jobs to work centers and to various machines in the work centers.
When making assignments managers often seek an arrangement that will minimize processing and set up costs.Minimize idle time among workcenters and minimize job completion time depending on situationWhen making assignments managers often seek an arrangement that will minimize processing and set up costs. Minimize idle time among workcenters and minimize job completion time depending on situation.

Question 7

What are Gantt charts

Answer 7

Are used for a variety of purposes related to loading and scheduling. Name.
From Henry Gant pioneered use in early 1900s

Organize and visually display the actual or intended use of resources in a time framework.

Managers may use the charts for trial-and-error scheduled development to get an idea of what different arrangements would involve.
Two most commonly used are load chart and scheduled chart2 most commonly used are load chart and scheduled chart.

Question 8

What is infinite loading

Answer 8

Assigns jobs to workcenters without regard to the capacity of the workcenter.
Can.
Lead to overloads and some periods and underloads and othersCan.
Lead to overloads and some periods and underloads and others.
Result in the formation of cues and some or all work centers that requires a second step to correct the imbalance

Question 9

What ia finite loading

Answer 9

Projects actual job starting and stopping times at each work center, taking into account the capacities of each work center.And the processing times of jobs , so that the capacity is not exceeded

One output is A detailed projection of hours each work center will operate

Might have to be.
Updated often perhaps daily due to processing delays at work centers and the addition of new jobs or cancelation of current jobs.

Question 10

What is forward scheduling

Answer 10

Scheduling ahead from a point in time.
Used when?
The issue is, how long will it take to Complete This Job?
Enables the scheduler to determine the earliest possible completion time for each job and the amount of lateness. Or the amount of slack that can be determined.
Can be combined with information from other jobs and setting up a schedule for all current jobs.

Question 11

Shat is backward scheduling

Answer 11

Scheduling packards from a jobs due date.
Used when the issue is when is the latest? The job can be started and still completed by the due date.

Question 12

What is sequencing?

Answer 12

Concerned with determining job processing ordertermines. Both the order in which jobs are processed at various workcenters, and the order in which jobs are processed at individual workstations within the work centers

Question 13

What are priority rules?

Answer 13

Simple heuristics used to select the order in which the jobs will be processed. The rules generally rest on the assumptions. That job set up costs and time are independent of processing sequence. Job processing times and due dates are important pieces of information.

Question 14

What is job flow time?

Answer 14

The amount of time it takes from when a job arrives until it is complete
Not only actual processing time, but also anytime waiting to be processed transportation time between Operations and waiting time related to equipment breakdowns, unavailable parts, quality problems and so on.
Is the cumulative sum of job times

Question 15

What is job lateness?

Answer 15

The amount of time the job completion date is expected to exceed the date. The job was 2 or promised to a customer. It is the difference between the actual completion time and the due date.
Zeros are assigned to jobs that are early.

Question 16

What is average number of jobs

Answer 16

Jobs that are in a shop are considered to be working process inventory. The average working process for a group of jobs
If the jobs represent equal amounts of inventory then the average number of jobs will also reflect the average work in process inventory.

Question 17

Spt advantages

Answer 17

Results in the lowest optimal average completion flow time result in lower in process inventories.
Lowest optimal average tardiness results in better customer service levels
Involves a lower number of jobs at the work center tends to be less congested In the work area
Also minimizes down stream idle time

Question 18

Spt disadvantages

Answer 18

Tends to make long jobs wait perhaps for longer times

Question 19

How do you minimize scheduling difficulties?

Answer 19

Set realistic due dates focus on bottleneck operations. Consider lot splitting for large jobs. This usually works best when they are relatively large differences in job times

Question 20

What problems do Scheduling service systems present that aren’t generally encountered in manufacturing systems

Answer 20

One primarily due to the inability to store or inventory services to the random nature of customer requests for services 3, the fact that when waiting, customers can observe the services.

Question 21

What does scheduling in service systems involve

Answer 21

One scheduling customers to the workforce and 3 equipment scheduling.Customers takes the form of appointments or reservation systems

Question 22

What are appointment systems?

Answer 22

Intended to control the timing of customer arrivals to minimize customer waiting, while achieving high degree and capacity use.
Problems include late arrivals and no-shows, but even with these, the appointment system is tremendous improvement over random arrivals.

Question 23

What are reservation systems

Answer 23

Design to enable service systems to Formulate a fairly accurate estimate of the demand on the system for a given period and to minimize customer disappointment generally, if by excessive waiting or an inability to obtain service.
Late arrivals and no-shows can disrupt the system.

Question 24

What is capacity management

Answer 24

Scheduling the work force
Works best when Demand can be predicted with reasonable accuracy.
Capacity can be adjusted by having cross-trained. Workers who can’t be temporarily assigned to help out on bottom neck operations during periods of peak demand.

Question 25

What effects work for scheduling flexibility

Answer 25

Legal.
Behavioral and technical , such as workers qualifications to perform Certain operations in budget constraints Union or federal work Rules and vacations can make scheduling more complicated

Question 26

What are some Supply chain considerations

Answer 26

The responsiveness of suppliers to change in purchasing requirements.
Variations and customer requirements that will strain company scheduling systems.
Level of integration that is desirable among the supply company’s scheduling systems.
Achieving the right communication balance within the capabilities of the members of a supply change should be part of any scheduling strategy