A change management plan serves as a roadmap that defines the concrete steps an organization will take to execute a change management process. The plan should include goals, a robust communication strategy, plans to manage resistance to change, and training. It is developed through a multi-step process of defining goals and KPIs, assembling a team, building out the plan, executing it, and reinforcing the changes. The overall aim is to help people adapt to changes and ensure a smooth transition through the process.