The -- inventory method is designed to keep a minimum of parts, supplies, and other materials on hand just in time to go on the assembly line.

The inventory method you are referring to is known as Just-In-Time (JIT) inventory management. JIT is a strategy that aligns raw-material orders from suppliers directly with production schedules. By keeping minimal stocks on hand, businesses aim to reduce carrying costs and improve efficiency.

Key Characteristics of JIT Inventory:

1. Reduced Inventory Levels: JIT minimizes the amount of inventory kept on hand. This approach decreases storage costs and reduces waste from unsold products.

2. Increased Efficiency: By streamlining the production process and only ordering what is needed when it is needed, organizations can respond more quickly to consumer demand.

3. Supplier Relationships: JIT relies heavily on strong supplier partnerships, ensuring that materials arrive right on time for production without delays.

4. Demand Forecasting: Accurate forecasting is crucial in a JIT system to avoid shortages or backlogs, as any miscalculation can halt production.

5. Continuous Improvement: JIT not only involves timing but also a commitment to process efficiency and quality control, often utilizing techniques such as lean manufacturing.

Overall, JIT is designed to enhance production efficiency and reduce waste, which can lead to cost savings and improved competitiveness in the market.