Kakushin: the radical breakthrough

Kakushin (革新) is a Japanese term translated as "radical innovation" or "transformation. In the context of Lean , it represents a fundamental and rapid breakthrough that approaches a process, product or system in an entirely new way. Whereas Kaizen (continuous, incremental improvement) is about perfecting the current method, Kakushin is focused on eliminating the existing and creating a better, smarter approach.

Kakushin versus Kaizen

• Kaizen focuses on small, daily improvements that increase efficiency one step at a time. It is a bottom-up approach that involves everyone in eliminating waste.
• Kakushin is a top-down approach that often requires strategic change. It involves reinventing a process or introducing a new technology, making a giant leap forward all at once.

Both principles complement each other. After a Kakushin breakthrough, the new standard is further optimized through Kaizen. A good example is the introduction of a completely new production line (Kakushin), after which daily operational tasks on that line are continuously improved (Kaizen).

In summary, Kaizen is evolution, while Kakushin is revolution.

‍