Birnbaum joint importance measures for three components of a repairable multistate systems

In this paper new measures of joint importance two and three components for repairable multistate systems based on the classical Birnbaum measure, are proposed. By considering system, first relevancy conditions given. Then probabilities each measured. The proposed method is applied a data set. An illustrative example As in generic since they depend probabilistic properties system structure. These useful when consider system.