RACI Matrix Deep Dive

Complete guide to the RACI Matrix for the PMP exam — roles, rules, and when to use it.

RACI Matrix

The RACI Matrix (Responsibility Assignment Matrix) is a tool used to clarify roles and responsibilities for project tasks and deliverables.

RACI Definitions

  • R — Responsible: The person(s) who do the work to complete the task
  • A — Accountable: The person who is ultimately answerable for the task's completion. Only ONE person can be Accountable per task.
  • C — Consulted: People whose opinions are sought (two-way communication)
  • I — Informed: People who are kept up to date on progress (one-way communication)

RACI Rules

  • Every task must have exactly one Accountable person
  • A task can have multiple Responsible people
  • Avoid too many C's and I's — it slows decision-making
  • If someone has no R, A, C, or I for a task, they're not involved

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