An all-encompassing definition of change management should include the planning phase of the change, the initiation of the change and the realization of that change. These take place during the active phase of the change.
Once the change has been put in place, there are two other areas to consider. After the change is instituted, you need to control what you have done so it does not get out of hand and to stop things from backsliding. Finally, you need to make sure that your environment is stable.
A key aspect of stabilizing your change management strategy is to deal with the human-side of the new direction. Most people who go through a change view it as negative. They or their coworkers may lose their jobs or have responsibilities added to their current position. It is hard for them to accept change. This is why all affected employees must participate in the intended change.
To learn how to effectively communicate with your employees, go to Communication in Change Management.
An IT manager should anticipate when resistance from employees can be expected and proactively deal with this resistance. Employees will go through several emotional stages before they fully accept and embrace the plan. You should anticipate their needs during these phases. Helping employees deal with these issues is a major part of how you define change management.
Change is an adaptive process, especially in today's environment. External issues may force change upon you, or they may be initiated internally so that your company can grow and adjust to an ever-changing industry. Effectively dealing with these issues and controlling what happens throughout the change is at the heart of change management methodology.