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What is Forward and Backward Scheduling?

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Jennie Miller

MIE Solutions offers a made to order job shop ERP system designed for the manufacturer of goods and products. Most accounting systems are designed for the basic AR, AP, and GL side of financials where a manufacturing software product deals with the actual production of the goods and services.   MIE Trak is a full-featured ERP system for the made to order and engineer to order manufacturer. If your estimating system is inaccurate your production scheduling software or manufacturing scheduling software will give you very poor results. If the quality of your estimates is good then the standard scheduling for production scheduling software will be more precise.

What is scheduling?

Scheduling is a method where there is a set of x tasks that need to be completed on a set of y resources in an efficient manner. Wikipedia gives us a good definition of scheduling “Companies use backward and forward scheduling to allocate plant and machinery resources, plan human resources, plan production processes and purchase materials.”

What is forward scheduling?

Forward scheduling is taking a job with a number of tasks and allocates those tasks to resources as early as possible when resources allow. The first available time that the resource is available to be used the task should make use of it. As with all scheduling methods, there are pros and cons of how they work. Forward scheduling may result in jobs being completed earlier than the requested due date because forward scheduling schedules the tasks as early as possible. Forward scheduling tells you when a job could be completed vs completing the job when required.

What is backward scheduling?

Backward scheduling is taking a job with a number of tasks and allocates those tasks to resources in reverse orders and schedules the task on the resource. Backward scheduling requires a delivery date from the customer because the system schedules backward from the delivery date to arrive at the start date. Backward scheduling tells the manufacturer if this date could be hit based on the allocation of resources. Unlike forward scheduling which schedules into the future, backward scheduling could potentially schedule into the past because the resources were not available to complete the job. Backward scheduling then may turn around and actually forward schedule the job to tell the customer the earliest delivery time.

Scheduling is very complex and this post will try to go over many aspects of scheduling from types of scheduling, how to allocate resources, defining resources, etc.

Some of the benefits of scheduling include:

  • Process change-over reduction

  • Inventory reduction, leveling

  • Reduced scheduling effort

  • Increased production efficiency

  • Labor load leveling

  • Accurate delivery date quotes

  • Real-time information

Learn more!

The team at MIE Solutions understands production scheduling and what it takes to keep manufacturing businesses running smoothly and efficiently. MIE Trak Pro offers APS Scheduling, a drag-and-drop Planning Board, and more. If you and your manufacturing team are interested in learning more, contact us today or request a demo of MIE Trak Pro.

Source: https://www.mie-solutions.com/founders-blog/estimating/what-is-forward-and-backward-scheduling

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