Change Management Theory has its roots from different fields, namely, engineering, business and psychology. That is why change management is applied in different ways in different disciplines.
If we are talking about Individual Change Management, that refers to changing the behavior of an individual (such as when the person needs to stop smoking or drinking.)
Change Management in business pertains to changing technology and/or a business process. When applied on a societal level, Change Management refers to creating new laws or government policies to initiate societal changes. But regardless of how Change Management is to be applied or where, Change Management Theory operates on five key principles.
The first is that people display different reactions to change since each person is a unique individual.
The second is that all people have basic needs that they aim to satisfy, regardless of who they are or what their occupation is.
The third is that for every change that is initiated, the person or entity will have to lose something for the change to be successful.
The fourth is that people have different expectations about change management efforts so all change management programs have to be realistic.
And the last principle of Change Management Theory is that there will always be fear of change and proper change management involves facing those fears in appropriate ways.
When all these five principles are applied well by the person or organization which is undertaking change management, then the odds that change management will be successful go up significantly. This does not mean that failure will never occur, but rather that the odds of failure will go down by a great degree.