Change management follows certain models for its functionality and performance. These models used in change management are not restricted to change management alone. It is used in other aspects of management too. Some of the models used in change management are Ashridge Mission Model, Capability Maturity Model, Business Model, and the Burke–Litwin model which is also referred to as the casual model for organizational performance.

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The Ashridge Mission model has a ‘sense of mission’ that has to be accomplished. This mission has lots of functions which could be internal and external. In this model the employees and the managers are motivated to finish the task in hand with a high level of performance. Resource allocation is done consistently and sensibly. A direction is there and the values are shared among the employees.

The Capability Maturity Model (CMM) is an organizational model that is used in the change management process also. This model has five evolutionary steps that have to be followed to meet the standards of this model. The five steps or stages in the CMM are Initial, Repeatable, Defined, Managed, and Optimizing. The first stage (initial) is an ad-hoc stage where the process is chaotic. In the Repeatable stage the basic process is established and there is some discipline. In the Defined stage as the name indicates, the processes are well defined and standardized and also documented. In the fourth stage, Managed stage, the process is measured and the final stage is one where the process is optimized and there is continuous improvement in it.

In the business modeling the business process is well understood and then improvements are made to it. If the process is not known thoroughly then the attempt to improvements might be destructive too. Tools are needed for improvement. Simulation software are used for this purpose.

The Burke-Litwin model is based on the fact that the organization is chaotic. There are many factors for this chaotic nature and it is found that there is a casual link between these factors. It is this basis on which the Burke-Litwin model was built.