This document provides an overview of role and responsibility charting (RACI). It defines RACI as a technique for identifying process ambiguities and clarifying roles and responsibilities. The document outlines the basic assumptions around roles as conception, expectation, and behavior. It also describes the RACI process as a 5-step approach to systematically map out decisions, activities, roles and clarify responsibilities using the RACI codes of Responsible, Accountable, Consulted, and Informed. The goal is to ensure roles and expectations are clearly defined and aligned to improve process performance and accountability.