MRP-Principle Inputs for MRP Master production specifies the number of items(end products or Aggregate product plan subassemblies or parts as independent Firm orders Forecast of demand from requirements,usually as repair parts) from known unknown customer customer to be produced during specific time MPS periods; BOM(Bill of material)identifies the specific materials used to make each Bill of MRP Mterials Explosion Inventory item and correct quantities of each; (BOM) Calculus record files The inventory records file supplies data such as the number of units on Production Purchase hand and on order; order order MRP explosion calculus implements the calculation of MRP 上充道大粤MRP-Principle Aggregate product plan MPS MRP Explosion Calculus Bill of Mterials (BOM) Inventory record files Production order Purchase order Firm orders from known customer Forecast of demand from unknown customer • Inputs for MRP Master production specifies the number of items (end products or subassemblies or parts as independent requirements, usually as repair parts) to be produced during specific time periods; BOM (Bill of material) identifies the specific materials used to make each item and correct quantities of each; The inventory records file supplies data such as the number of units on hand and on order; • MRP explosion calculus implements the calculation of MRP