What is meant by 'RACI'?

Responsibility Assignment Matrix (RACI matrix) : One of the important tools for tracking roles & responsibilities.

RACI stands for:

Responsible – Who is responsible for the execution of the task?

Accountable – Who is accountable for the tasks and signs off the work?

Consulted – Who are the subject matter experts who to be consulted?

Informed – Who are the people who need to be updated of the progress?

RACI stands for Responsible, Accountable, Consulted and Informed 

A RACI model or matrix is a way of defining roles and responsibilities for a specific task or activity. there is a breakdown below.

The R is defines the role (or roles) that are responsible for execution of the task, activity or process. In some organizations this may have an additional layer of granularity that covers the task/activity/process manager and the task/activity/process practitioner. The manager is responsible for the team of practitioners.

The A defines the single role/person who is accountable for the activity. This individual (I prefer role-based assignment not a specific named person) owns the overall activity. The role is accountable for the governance, compliance and definition of the task, activity or process. 

The C is/are the roles that can provide help or additional information on an as needed basis. The C stands for Consulted.

The I is/are the roles that should be kept in the loop about progress, issues, etc. I stands for Informed.

For every activity, process or task there must be one and only one person/role defined as A (accountable/owner).

There must be at least one R (responsible individual or team). There can be more than one, but too many gets in the way of progress and can lead to finger pointing.

There should be as many C and I in the matrix as needed. Not everyone is a source of information or help and not everyone need information about everything.

It is possible for the same role to be both Accountable and Responsible. Again, it's important to not overload a specific role. So unless the organization is very small, it's important to keep this to a minimum.

As mentioned in the below answers RACI its the resbonsibility assignment metrix: Responsible, Accountable, Consulted & Informed.. those statment shows the project resources (project team) assigned to each work (activity). 

Responsible AccountableConsultedInformed

It is a responsibility assignment matrix with 

R for Responsibile

A for Accountable

C for Consult

I for Inform

it is a responsiblity matrix............... 

I agree with rest the answers .

RESPONSIBLE,accountable,consulted,informed

Stand For :Responsabile-Accountable -Consultant -Informed 

Used in the responsibility assignment matrix which describes the participation by various roles in completing tasks or deliverables for a project 

thanks for invition ,,,,,,,,,, i agree with experts answers