Lewin’s Model of Change (CATS)

Lewin’s Model of Change (CATS) (Change As Three Steps) is a three-step change management model is defined by Kurt Lewis back in the 1940s. The model includes three steps: unfreeze, change, and refreeze. Unfreeze prepares the changes. Change implements the changes. Refreeze celebrates the success and sustains the changes. The model tells the fundamental process of any change management.​