The task of searching for of rational strategy of technical service is considered for the difficult systems the elements of which function in different terms. It is rotined that the account of distinctions in the modes and external environments results in the origin of priorities in maintenance of one elements before other. The task of optimization of technical service in such system is formulated as the three-index is boole, which is taken to twoindex.
difficult system, technical service, account of terms and modes of exploitation
"Orhanyzatsyia tekhnycheskoho obsluzhyvanyia mnohoэlementnoi systemы s uchetom dynamyky pryorytetov" ,
Information Processing Systems,