What does “lead time” refer to in supply chain management?

In supply chain management, "lead time" specifically refers to the total time it takes from the moment an order is placed until the order is received and available for use. This encompasses several components of the supply chain, including order processing time, production time (if applicable), and shipping or transit times.

Understanding lead time is crucial for effective inventory management and planning, as it helps organizations anticipate when products will arrive and ensures that supply meets demand. Monitoring lead time allows businesses to improve operational efficiency and customer satisfaction by reducing delays and optimizing the overall supply chain process. Each of the other choices relates to specific aspects of the supply chain, but they do not capture the comprehensive definition of lead time as effectively as the correct answer.