Responsible (R): the one who is responsible for identifying CI and updating CI data, e.g. CI owner.
Accountable (A): the one who is responsible for managing the configuration according to the process that determines for approving or not approving the change request.
Consulted (C): the one who is responsible for advising or reviewing.
Informed (I): those who use information from the work, for example, the project manager needs to use report results of the measurement.