What are the two main pillars of the Toyota Production System?

[McLouis]

The two main pillars are Just-in-Time (JIT) production, which aims to thoroughly eliminate waste and reduce costs, and Jidoka (Autonomation). Below are the relevant details: 1. Just-in-Time: Producing the required products in the required quantities at the required time. It avoids holding excessive inventory and prevents customers from waiting. Through mechanisms like pull production by downstream processes, determining production pace based on necessary quantities to prevent overproduction, and flow production methods like single-piece flow, inventory is minimized. This approach visualizes waste in human and management processes to drive continuous improvement. 2. Jidoka: The concept of automatically or manually stopping the production line when defective products are detected, making abnormalities easily noticeable. When defective products occur, it is not only considered an abnormality in product quality but also indicates that human or equipment operations have deviated from standard conditions, necessitating a halt.