Lewin’s Three-Stage Change Model Glossary Definition

Lewin?s Three-Stage Change Model is a historically significant framework associated with Kurt Lewin for Business, Project Management, and Requirements work. It is used in Organizational Change Management planning, adoption, communication, training, or continuous-improvement work.

Historically influential model describing change as unfreezing, moving through change, and refreezing new behavior or practice. Professionals may encounter it in documentation programs, governance reviews, training initiatives, compliance work, standards research, or change efforts depending on the setting. The entry intentionally summarizes the model in original smitchell.org language and does not reproduce proprietary diagrams, instruments, or method text.