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Kaizen (改善), Japanese for “improvement”, or “change for the better” refers to philosophy or practices that focus upon continuous improvement of processes in manufacturing, engineering, and business management. When used in the business sense and applied to the workplace, kaizen refers to activities that continually improve all functions, and involves all employees from the CEO to the assembly line workers. It also applies to processes, such as purchasing and logistics, that cross organizational boundaries into the supply chain. By improving standardized activities and processes, kaizen aims to eliminate waste.
[Source: Wikipedia: Kaizen.]