Just-In-Time (JIT) is a production strategy aimed at reducing flow times within production systems as well as response times from suppliers and to customers. By receiving goods only as they are needed in the production process, companies can minimize inventory costs and increase efficiency. This approach is closely associated with Toyota, which pioneered JIT in the automotive industry. The core principle of JIT is to produce only what is needed, when it is needed, and in the amount needed. This method helps businesses reduce waste and improve quality, ultimately leading to higher customer satisfaction. JIT requires precise planning and coordination with suppliers to ensure that materials arrive just in time for production.