Which of the following is not considered one of the three core components of MRP II?

• A. Master Production Schedule
• B. Material Requirement Planning
• C. Shop Floor Control
• D. Just-In-Time Production

Answer: (D)

The main idea is that MRP II centers on planning and controlling manufacturing resources through three core modules: the Master Production Schedule, which outlines what and when to produce; Material Requirements Planning, which converts that plan into material needs and timing; and Shop Floor Control, which executes and tracks production on the shop floor. Just-In-Time Production, while a valuable production philosophy aimed at reducing inventory and waste and often used in lean manufacturing, is not one of the formal core modules of MRP II. It can complement MRP II by guiding how work is pulled through the system, but it isn’t considered a core component of the MRP II framework itself.