Which description best matches Resource Requirement Planning (RRP)?

• A. A long-range capacity planning module used to check whether aggregate resources are capable of satisfying the aggregate production plan
• B. A short-range scheduling tool used to optimize daily shop floor assignments
• C. A BOM listing of final product
• D. A medium-range module used to check the feasibility of the master production schedule

Answer: (D)

Resource requirements planning is about ensuring that the planned production can actually be supported by available resources over a medium time horizon. The best description, therefore, is a medium-range module that checks the feasibility of the master production schedule, verifying whether capacity, labor, machines, and other constraints line up with the MPS before moving into detailed scheduling. It helps surface capacity shortfalls or bottlenecks and guides adjustments to the MPS to keep the plan realistic.

Why the other descriptions don’t fit: long-range capacity planning looks at aggregate resources over a longer horizon and is more strategic, not focused on validating a specific master production schedule. Short-range scheduling handles day-to-day shop-floor assignments, which is more granular than RRP. A BOM listing is about the materials structure of a product, not about whether resources can support the production plan.