Models of Change Management

If we recognize the need for change and the circumstances under which it must occur, we can look to the methods of change. Organizational researchers offer models for change management. Read this article to study several models for change management, such as Lewin's Three-Step model, Kotter's Eight-Step Plan, Nadler's System Model, and Action Research.

Nadler's System Model

David Nadler, an American organizational theorist, proposed a system model that suggests that any change within an organization has a ripple effect on all the other areas of the organization. He suggests that, to implement change successfully, a manager must consider four elements:

  • Informal organizational elements: communication patterns, leadership, power
  • Formal organizational elements: formal organizational structures and work processes
  • Individuals: employees and managers, and their abilities, weaknesses, characteristics, etc.
  • Tasks: assignments given to employees and managers


In accordance with a systems view, if a change impacts one area, it will have a domino effect on the other areas.

As an example, a company may put out a new travel and entertainment policy. That policy, a formal organizational element, has an impact on information organizational elements, individuals and tasks. A new CEO joins and creates changes throughout the organization, impacting items at every level.

Ultimately, though, outputs are positively impacted. The travel and entertainment policy minimizes work processes and saves the company money. The CEO increases shareholder value.