Which production planning approach keeps a stable output rate and adjusts inventory levels to meet demand?

• A. Level schedule
• B. Lead-time offset
• C. Landed cost
• D. Level production method

Answer: (D)

The main idea here is producing at a constant rate and using inventory as the buffer to meet varying demand. This approach, known as level production, keeps the output pace steady across the planning horizon. When demand rises or falls, production stays the same while inventory is built up or drawn down to absorb these differences. This stabilizes operations, reduces the need for changes in labor or setup, and smooths the schedule, though it may raise inventory carrying costs.

This is why the level production method is the best fit: it explicitly aims to maintain a stable output rate and uses inventory levels to absorb demand fluctuations. The other concepts aren’t about keeping output constant while buffering with inventory; they involve prioritizing lead times, cost calculations, or different scheduling interpretations that don’t center on a fixed production rate.