Calculate Buffer Part Attributes Component Summarized Where Used Inventory Part Buffer Part Attributes Calculate Buffer Part Attributes Calculate Buffer Part Attributes Buffer Parts Attributes Inventory Part Planning Data Component Summarized Where Used Calculate Cumulative Lead Time Cumulative Lead Time Calculation Manufacturing Lead Time Calculation Buffered Parts Calculate Buffer Zones Calculate Buffer Zones Buffer Part Attributes Buffer Parts Attributes Calculate Buffer Zones Perform Lead Time Category Classification Perform Lead Time Category Classification Perform Lead Time Category Classification Calculate Historical Average Daily Usage Calculate Historical Average Daily Usage Calculate Historical Average Daily Usage Buffer Levels