thumb|Example of a responsibility assignment matrix.

A responsibility assignment matrix, RACI matrix (responsible, accountable, consulted and informed matrix; ) or linear responsibility chart, is a project management technique that describes the responsibilities of various stakeholders in completing tasks or deliverables. The matrix assigns one of four responsibilities to each stakeholder in executing a deliverable: Responsible, Accountable, Consulted, and Informed.

Under the RACI framework:

  • Responsible stakeholders are involved in the planning, execution, and completion of the task;
  • Accountable stakeholders are held to be individually and ultimately responsible for the success or failure of the task;
  • Consulted stakeholders are sought for their opinions on a task;
  • Informed stakeholders are updated as the project progresses.

RACI model

RACI is a model that describes the participation of various roles in completing tasks or deliverables for a project or business process. The four key responsibilities most typically used are: responsible, accountable, consulted, and informed. It is often used to define roles and responsibilities in cross-departmental projects.

R: Responsible — Those who complete the task. There is at least one role with a participation type of responsible, although others can be delegated to assist in the work required.

A: Accountable (also approver or approving authority) — The one ultimately answerable for the correct completion of the deliverable or task, ensuring the prerequisites of the task are met, and delegating the work to those responsible.

C: Consulted — Those whose opinions are sought, such as subject-matter experts, and with whom there is two-way communication.

Alternatives

There are a number of alternatives to the RACI model, including:

  • DACI: Driver, Approvers, Contributors, Informed
  • PARIS: Participant, Accountable, Review required, Input required, Sign-off required
  • RACI + F: includes Facilitation in Scrum projects
  • RACIS/RASCI/RASIC/RASI: includes Support
  • RACIO/CAIRO: includes Omitted (or Out-of-the-loop)
  • RACIQ: includes Quality review
  • RACI-VSL includes Verifier and Signatory