Jidoka is a key principle in the Toyota Production System that emphasizes quality control during the manufacturing process. It allows machines and workers to detect defects or issues immediately, enabling them to stop production to address problems. This approach helps prevent defective products from moving further down the production line. By integrating Jidoka, companies can improve efficiency and reduce waste. It encourages a culture of continuous improvement, where employees are empowered to take action when they notice something wrong. This not only enhances product quality but also fosters a sense of responsibility among workers.