This RACI Matrix Example is a basic diagram used in project management to map task roles and responsibilities. A RACI chart specifies who will be Responsible, Accountable, Consulted, or Informed for a project activity's corresponding task, milestone, or decision. A RACI matrix for a project can also help you eliminate confusion by identifying who is doing what at a granular level that simple task assignments cannot. This sample RACI matrix overviews how roles and responsibilities interact for various project tasks.