Over time conditions placed on the buffered parts might change. I.e., introduction of new suppliers or components, changes in the manufacturing process and/or methods. To handle these new conditions the buffer levels might have to be adjusted. Mainly there are four types of adjustments.
| Adjustment Type | Description | Option |
| Recalculated Adjustments | In order to handle variability
over time ADU can be recalculated based on a rolling horizon. ADU is
calculated based on historical issues. Two types of adjustments can
be done:
Calculated ADU: Calculated based on the historical issues for a long rolling horizon. ADU Alert Quantity: Calculated based on the historical issues for a short rolling horizon.
|
This needs to be set up in the
Inventory Part Planning Data/Buffer Part Attributes. Use
Calculated ADU or ADU Alert Quantity in Operation ADU
Source. Perform Calculate Historical Average Daily Usage to calculate above defined values. |
| Forecasted Adjustments | Forecasted Adjustments affect inventory positions
by raising or lowering buffer levels and their corresponding zones at
certain points in time. This manipulation occurs through adjusting ADU
to a historically proven or planned positions based on an approved business
case. Forecast adjustments are commonly used for situations such as seasonality, product ramp up and ramp down. |
This needs to be set up in Inventory Part Planning Data/Buffer
Part Attributes. Use Forecasted ADU in the Operation
ADU Source. Perform MRP to calculate above defined value. |
| Planned Adjustments | Planned Adjustments can be used to define adjustments
to different buffer part attributes over a specified time period. It
automatically adjusts the Operational ADU by applying a factor to Operational
ADU source. Adjustments can be applied to Unprotected lead time and
Buffer zones as well. A planned adjustment is useful for ramp up and ramp downs caused by product introduction, product deletion and product transition. It can be connected to a buffered part or a buffer profile. |
Define the buffer adjustment in Buffer Part Attributes Adjustments and connect this to either a buffer profile in Buffer Profiles or a buffered part in Inventory Part Planning Data/Buffer Part Attributes. |
| Manual Adjustments | By analyzing the results of the Calculated ADU, Forecasted ADU or the ADU Alert Quantity you can manually adjust the ADU. This option is given to facilitate flexibility to adjust zones according to the manually adjusted ADU. | This needs to be set up in the Inventory Part Planning Data/Buffer Part Attributes. Use Manual in Operation ADU Source. |