Change management refers to any approach to transitioning individuals using behavioral sciences, such as those published by PROSCI. Organizational Change Management considers the full organization and what needs to change. Organizational Change Management principles and practices include CM as a tool for change focused solely on the individual.CM focuses on how people and teams are affected by an organizational transition. It deals with many different disciplines, from behavioral and social sciences to information technology and business solutions. In a project management context, change management may refer to the change control process wherein changes to the scope of a project are formally introduced and approved.History1960sMany change management models and processes are based with their roots in grief studies. As consultants saw a correlation between grieving from health-related issues and grieving among employees in an organization due to loss of jobs and departments, many early change models captured the full range of human emotions as employees mourned job-related transitions.In his work on Diffusion of Innovations, Everett Rogers posited that change must be understood in the context of time, communication channels, and its impact on all affected participants. Placing people at the core of change thinking was a fundamental contribution to developing the concept of change management. He proposed the descriptive Adopter groups of how people respond to change: Innovators, Early Adopters, Early Majority, Late Majority and Laggards.