Scheduling
Download
1 / 12

Scheduling - PowerPoint PPT Presentation


  • 175 Views
  • Uploaded on

Scheduling. Chapter #11. Scheduling. Allocation of resources over time to accomplish specific tasks. Scheduling is done in the short term time horizon i.e. months, weeks or days. Effective and efficient scheduling can be a competitive advantage. Long term. Aggregate Plan.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Scheduling' - floyd


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Scheduling

Scheduling

Chapter #11


Scheduling1
Scheduling

  • Allocation of resources over time to accomplish specific tasks.

  • Scheduling is done in the short term time horizon i.e. months, weeks or days.

  • Effective and efficient scheduling can be a competitive advantage.


Scheduling

Long term

Aggregate Plan

Determine production capacity

Master Production

Schedule (MPS)

Determine the production schedule for specific products

Intermetiate

term

Different Levels of Planning

Strategies and

policies

External

environment

Forecast of

demand

Short

term

Business Plan

Determine the long-term strategies for production and capacity

Aggregate

planning

Master

scheduling

Material Requirements

Planning (MRP)

Determine the needs for components and raw materials

Detailed planning of orders

Scheduling


The scheduling decisions
The Scheduling decisions

  • What is to be done (Work)

  • When (Timings)

  • By whom (Workers)

  • With what equipment. (Work Stations)


Objectives of scheduling
Objectives of Scheduling

  • High Efficiency

  • Low cost

  • Low inventories

  • Good customer service

  • Meeting Demand on time


Scope of scheduling
Scope of Scheduling

  • Scheduling Demand:

    • Scheduling customers by assigning a specific time for order fulfillment.

  • Scheduling Workforce:

    • Scheduling that determines when employees work.

  • Scheduling Operations:

    • Scheduling in which jobs are assigned to work stations or employees are assigned to jobs for specific time periods.


Scheduling approaches

Due Date

Due Date

Now

Now

Scheduling Approaches

Forward Scheduling

  • The scheduler selects a planned order release date and schedules all activities from this point forward in time.

  • Produces a schedule though it may not meet due date.

  • Backward Scheduling

  • Begins with the due date and schedules

  • the final operation first . Schedule is produced

  • by working backwards though the processes


Scheduling techniques
Scheduling Techniques

  • LOADING / DISPATCHING:

    • Involves assigning jobs to work centers and to various machines in the work centers

  • SEQUENCING:

    • Sequencing is concerned with determining the order in which jobs are processed


Priority sequencing rules
Priority Sequencing Rules

  • Random

  • FCFS

  • EDD

  • SPT (Shortest Processing Time)

  • LWR (Least work Remaining)

  • FOR (Fewest operation Remaining)

  • ST (Slack Time)


Gantt chart
GANTT Chart

  • Gantt charts are named for Henry Gantt, a management pioneer of the early 1900s.

  • He proposed the use of a visual aid for loading and scheduling operations.

  • Most commonly used scheduling tool in the world.


Gantt chart example

Current date

Job

4/17

4/18

4/19

4/20

4/21

4/22

4/23

4/24

4/25

4/26

Ford

Nissan

Pontiac

GANTT Chart (Example)

Start activity

Finish activity

Scheduled activity time

Actual progress

Nonproductive time


Gantt chart example1

Time

12 pm

7am

8am

9am

10am

11am

1pm

2pm

3pm

4pm

5pm

6pm

Workstation

Operating Room A

Dr. Jon Adams

Dr. Aubrey Brothers

Dr. Alaina Bright

Operating Room B

Dr. Jeff Dow

Dr. Gary Case

Dr. Madeline Easton

Operating Room C

Dr. Jordanne Flowers

Dr. Dan Gillespie

GANTT Chart (Example)

Figure 14.8 – Gantt Workstation Chart for Operating Rooms at a Hospital