ABSTRACT
The complexity of the systems’ operation processes and these processes influence on changing in time the systems’ structures and their components’ reliability characteristics (Soszynska 2006, Soszynska 2007) is often very difficult to fix and to analyse. A convenient tool for solving this problem is semi-Markov (Grabski 2002) modelling of the systems operation processes which is proposed in the paper. Using the joint model of the system multi-state reliability and the system semi-Markov operation process (Soszynska 2006, Soszynska 2007) it is possible to point out the variability of system components reliability characteristics by introducing the components’ conditional multi-state reliability functions determined by the system operation states.
