Aerospace Instrument-Making Annotation << Back Integration on the base of system fault-tolerance – the perspective design way of the complexes of onboard equipment and guarantee flights safety M.M. Kofman, P.P. Paramonov, Yu.I. Sabo Practically trustworthy identification of technical state (TS) in every moment of discrete real time (DRT) and practical guarantee execution of target functions is head backbone quality of integrated complexes of onboard equipment (COE) of future. In the article this quality is named as system fault-tolerance (SFT) of COE. The approach to the integration of the basis of SFT has been implemented in COE designed by Experimental Design Bureau “Electroavtomatika” since eighties. This approach equates integration of the onboard equipment with optimization of synthesis of COE on system of criteria and limitations such as cost/efficiency. It pretends to entity and novelty and includes system presentation of philosophy, methodology, mathematical apparatus and technology of integration. SFT – the only way to provide practical guarantee of safety control of object, target application, power equipment, systems of life support, functionality of man-machine(interactive) system (MMS), because it is a quality of every single COE while characteristics of reliability are true only for representative extract of COE. Herein the suggested approach is practically invariant to hardware implementation and may be applied to new projects and modernizations of COE of any purpose.