Which system is an extension of MRP II and includes DRP, determining the need to replenish finished product inventory?

Which system is an extension of MRP II and includes DRP, determining the need to replenish finished product inventory?

• A. ERP
• B. MRP II
• C. S&OP
• D. ATP

Answer: (A)

ERP is the system that extends MRP II by integrating planning across the entire enterprise, including distribution. It adds DRP (Distribution Requirements Planning), which specifically coordinates finished goods across the distribution network—plants, warehouses, and stores—so replenishment happens where and when it’s needed. In an ERP setup, DRP uses real-time data on stock levels, lead times, safety stock, and demand signals to determine how much finished product to replenish and when, generating the necessary replenishment orders. This end-to-end integration is what makes ERP the right choice. MRP II is a step before ERP, focusing on manufacturing resources; S&OP is a planning process, not a full system; ATP is a capability within ERP that answers “can we fulfill this order?” but does not describe the system that governs end-to-end replenishment across the network.

ERP is the system that extends MRP II by integrating planning across the entire enterprise, including distribution. It adds DRP (Distribution Requirements Planning), which specifically coordinates finished goods across the distribution network—plants, warehouses, and stores—so replenishment happens where and when it’s needed. In an ERP setup, DRP uses real-time data on stock levels, lead times, safety stock, and demand signals to determine how much finished product to replenish and when, generating the necessary replenishment orders. This end-to-end integration is what makes ERP the right choice. MRP II is a step before ERP, focusing on manufacturing resources; S&OP is a planning process, not a full system; ATP is a capability within ERP that answers “can we fulfill this order?” but does not describe the system that governs end-to-end replenishment across the network.