Just-in-time (JIT) is a production strategy that aims to reduce waste and increase efficiency by receiving goods only as they are needed in the manufacturing process. This approach minimizes inventory costs and ensures that materials are available at the right time, which helps companies respond quickly to customer demand. JIT is often associated with the Toyota Production System, which revolutionized manufacturing practices. In a JIT system, suppliers play a crucial role in delivering materials promptly and reliably. By coordinating closely with suppliers, companies can streamline their operations and reduce excess inventory. This method not only lowers costs but also enhances product quality and customer satisfaction by ensuring timely delivery of products.