Saturday, 7 September 2013

AX 2012 Operations and Job Scheduling Discrete Manufacturing

In AX 2012  there are two types of scheduling.

  1. Operations Scheduling - Long Term scheduling a resource group level.
  2. Job Scheduling - Specified at resource level, used for short term scheduling. The operations are split into their specific jobs, and the resources for the operations are planned.

Both types of scheduling enable you to schedule multiple production ions in the order of their assigned priority. 

Before Scheduling a production, the organization has to determine wether production should be scheduled backwards or forwards. Production Scheduling parameters can be found on the job scheduling or operations scheduling form. That can be found under Periodic  or under the production order list page action pane under the Scheduling Tab.


Forward from Scheduling Date

This direction of scheduling will schedule the production from the earliest start date and scheduled to the earliest possible end date.

Backward Scheduling from Date

AX 2012 will schedule the production as late as possible keeping in mind the delivery date of the production order. It is based on the latest end date the date the production order must be completed then the start date is calculated going backwards.

Factors that influecne scheduling

Infinite / Finite Capacity 

If you remember when we were setting up resources in a previous post there was a parameter for Finite Capacity.  This parameters comes into play when scheduling is run. Infinite capacity does not take into account any of the previous capacity reserved for existing production orders.

Finite capacity dictates that the total load on the resource should not be greater than the capacity of the resource

Efficiency on Resources

Efficiency of a resource will determine the scheduling of the production order. Efficiency is set on the Calendar or directly on the resource.  The efficiency is factored into the available capacity of the organization.


Scheduling Time = Time * 100/Efficiency%


Common Confusion

I want to touch on something that can be confusing for beginner at production in AX 2012.

Under the general tab in the resources form we see the Finite Capacity property under the scheduling tab and the Capacity Unit field under the capacity group. 

These two fields are not related. 

Finite Capacity is related to the available time as per the calendar that is attached on the resource. 

Capacity is unit is used for the costing purposes for the operation.




Back to the Topic at hand.....

Finite Material

Using this tab the production is scheduled according to how much material availbale.






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