Material requirements planning:
"Time-phased material requirements calculated using the BOM and inventory data in order to satisfy the MPS. (material requirements planning (MRP) , A set of techniques that uses bill of material data, inventory data, and master production schedule to calculate requirements for materials. It makes recommendations to release replenishment orders for materials. Further, because it is time-phased, it makes recommendations to reschedule open orders when due dates and need dates are not in phase.)"
