kaizen

Kaizen according to Wikipedia is this:

Kaizen (改善), is the Japanese word for "continual improvement ". In business, kaizen refers to activities that continuously improve all functions and involve 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.[1] It has been applied in healthcare,[2] psychotherapy,[3] life-coaching, government, banking, and other industries.

By improving standardized programmes and processes, kaizen aims to eliminate waste (see lean manufacturing). Kaizen was first practiced in Japanese businesses after the Second World War, influenced in part by American business and quality-management teachers, and most notably as part of The Toyota Way. It has since spread throughout the world[4] and has been applied to environments outside of business and productivity.