A RACI chart is a type of Responsibility Assignment Matrix (RAM) in project management that lists all stakeholders on a project and their level of involvement in each task.
R, A, C, I stand for:
The person who designates the task as assigned directly to someone.
The person who delegates and reviews the work of the project.
The person who provides feedback on the work being done in the project.
The Informed person who needs to be looped into the progress of the project.