RASCI matrix is used for the allocation and assignment of responsibilities to the team members in projects, processes or their parts. Use the letters R A S C I in the matrix in order to descibe level of responsibility. There is a rule applied that the overall responsibility (A - Accountability) has the only one person. The people involved (R - Responsibility) should be adequate to the task. Method RASCI is a simple form of competency model and expansion of RACI matrix by people that support the execution of their mission.