Relative behavior of a coherent system with respect to another coherent system

In this paper, two independent coherent systems with different structures, and different types of components are considered. The remaining lifetime and the remaining number of working components of system I after the failure of the system II when we know that the system II fails before the system I are studied. In particular, signature-based expressions are obtained for the distribution of these conditional random variables. Illustrative examples are provided. Copyright Springer-Verlag Berlin Heidelberg 2015