1. Explain the meaning of the following terms (as used in SAP ERP):
a. Planning Time Fence and Firming Type
b. In-House Production (Time)
c. Reservation
d. Backflushing
2. Contrast the following terms:
a. Variant BOM vs. Summarized BOM
b. Dependent Requirement vs. Independent Requirement
c. Scheduled Receipt vs. Planned Order
d. Safety Stock vs. Safety Lead Time
e. Forward Scheduling vs. Backward Scheduling