AbstractCertain networks which are coherent from the viewpoint of the system as a whole appear noncoherent from the viewpoint of the individual terminals served by the system. Describing this noncoherent behavior leads to analytic and computational difficulties. This paper presents a method for modelling the noncoherent problem as a linear combination of coherent subproblems. This approach permits the use of standard analysis techniques for the coherent subproblems and substantially reduces the computational requirements for analysis of such networks.