Considerations

Part Type Considerations

The load calculation is derived from the planned routing, and the planned routing considers all levels of the bill of material.  Based on these factors, the Key Facility Load Report uses the current or tentative schedule for standard master scheduled parts (Demand Code of M) or the current or simulated schedule for daily master scheduled parts (Demand Code of D) to calculate total load.  This assumes that the production of all lower-level parts is represented by the schedule for standard or daily master scheduled parts.  However, the production of non-master scheduled parts for service demand will not be represented by the schedule for standard or daily master scheduled parts.  Therefore, additional load will be calculated for service parts (Demand Code of S), based on forecast and customer orders.

Planned Routing Generation Frequency

A planned routing is generated for a part based on the hours per piece of work performed at a key facility for that part.  Therefore, once a planned routing is generated for a part, it need not be regenerated unless the bill of material, routing, or key facility definition changes.

Processing Constraints

In the Key Facility Load reporting, detailed processing has been streamlined in order to provide speed of response and ease of use.  This means that the processing provides only an estimate of where problems are likely to occur in the master schedule.  The two factors listed below will affect the accuracy of this estimate:

1.   Inaccurate data will result if the total elapsed time to make a part is greater than 120 days, since the system assumes 120 days as the maximum.

2.   Inaccuracies may result if scheduled order quantities are different from the average order size.  This is because the planned routing generation converts fixed-time elements into variable hours per piece based on average usage.  The average order size is determined from the part's MS Order Quantity (if the part is standard or daily master scheduled) or from the part's Average Order Quantity (if the part is not master scheduled).