Figure 1 depicts the elements of a change model and the sequence in which they occur.
Figure 1 Change model for making change work 
In the center of the figure, all changes move from the current state, through a transition phase, into the desired improvement state.
At all stages, you must assure that the change will fit in the environment: the organizational structure, the business culture, the work processes, etc. For example, if you are automating a paper-based system, you must make sure that the users will not simply keep using the old paper system as well. You need to address work-flow changes, including training and education, rewards and recognition and transition planning, so that the new system will be aligned with the work environment.
For the highest assurance that a particular change will succeed, all seven steps of the change model should be in place. (See Figure 2.) If one area is weak it doesn’t necessarily mean disaster, but it does present a real risk. If you do choose to take a risk, you should do so in light of the potential consequences.
Figure 2 Elements of the change model 
Excerpted from Brien Palmer, Making Change Work: Practical Tools for Overcoming Human Resistance to Change, ASQ Quality Press, 2004, pages xv-xvi, 7–9.