Site on Toyota.com. "The Toyota Production System (TPS) was established based on two concepts: The first is called 'jidoka'(which can be loosely translated as 'automation with a human touch') which means that when a problem occurs, the equipment stops immediately, preventing defective products from being produced; The second is the concept of 'Just-in-Time,' in which each process produces only what is needed by the next process in a continuous flow."
