Resumen
The article states a problem of the increase of effectiveness of management of technical systems? operation and technical maintenance of big technical systems. It is proposed to solve this problem by the decrease of time of making managerial decisions as a result of creation and application of the universal methodology of assessment of technical systems quality within contemporary big technical systems. Then, the article describes a mode of the methodology application as means of integrational reserve of the increase of management effectiveness; in addition, it presents the methodology as a combination of principles, methods, models, modes and software. Finally, the authors outline a scheme of interdependence of theoretical grounds and a practical part of the methodology in order to solve the outlined problem.