Describe Lewin’s change model and the systems model of change. Lewin developed a three-stage model of planned change that explained how to initiate, manage, and stabilize the change process. The three stages were unfreezing, which entails creating the motivation to change; changing; and stabilizing change through refreezing. A systems model of change takes a big picture perspective of change. It focuses on the interaction among the key components of change.

The three main components of change are inputs, target elements of change, and outputs. The target elements of change represent the components of an organization that may be changed. They include organizational arrangements, social factors, methods, T-789 and people.