Final answer:
Just-in-Time (JIT) systems used by Toyota are considered part of the operations in the value chain, which enhances operational efficiency and quality control while reducing waste.
Step-by-step explanation:
Toyota uses Just-in-Time systems which are considered part of operations in the value chain. This system minimizes inventory by having parts delivered exactly when they are needed in the production process. Just-in-Time (JIT) is a key feature of lean manufacturing and has a significant impact on improving a company's operational efficiency. By integrating JIT into their operations, companies like Toyota ensure better quality control and reduce waste, enabling them to adapt quickly to market changes and maintain competitive advantage. The avoidance of warehousing jobs and large inventories is instrumental in reducing operational costs.