Lewin’s model identifies three stages within a change process. Identify and define the three stages.

Lewin's model, also known as Lewin's Change Management Model, identifies three stages within a change process. These stages are:

1. Unfreezing: This is the first stage of the process where the status quo is challenged, or the existing mindset is 'unfrozen'. During this stage, the need for change is recognized and the current ways of doing things are questioned. This stage involves breaking down the existing norms and creating an environment that is open to change.

2. Change/Transition: This is the second stage where the actual change takes place. This stage is often marked by uncertainty and fear as people are taken out of their comfort zones. During this stage, communication and support are crucial to alleviate fears and resistance. It's a transition phase where people gradually accept the new ways of doing things.

3. Refreezing: This is the final stage where the new mindset is 'refrozen'. During this stage, the new changes are established as the new norm. This involves reinforcing the new behaviors and changes so that they stick and become part of the regular ways of doing things. This stage ensures that people do not revert back to their old ways of doing things after the change initiative is over.