Organizational change involves any substantive modification in some relatively stable component of an organization—its people, structure, tasks, or technology. Kurt Lewin (1951) established the bedrock of change theory with his Three-Step Change Model, comparing organizational systems to blocks of ice that must be unfrozen, reshaped, and refrozen.
- Lewin's Force Field Analysis: Lewin also conceptualized change as a dynamic balance between driving forces (pushing toward change) and restraining forces (resisting change). Equilibrium is achieved when these forces are equal.
- Kotter's Eight-Stage Change Process: John Kotter (1995, 2012) expanded change into a sequential, leadership-driven roadmap ranging from establishing a sense of urgency to institutionalizing new approaches in the corporate culture.
- The Burke-Litwin Model: A causal model of organizational performance and change that distinguishes between transformational factors (leadership, mission, strategy, culture) and transactional factors (management practices, structure, systems, work climate).