This RASCI is one of the methods used in the organization to assign and display the responsibilities of individuals or jobs in a task. RASCI Responsibility Matrix, also known as the RASCI Matrix. It is one of the methods used in organizations to assign and display the responsibilities of individuals or jobs in a task. The RASCI matrix allocates and assigns duties to team members in projects, processes, or their components. In the matrix, use the letters R A S C I to describe the level of responsibility. There is a rule that only one person has overall responsibility.