Scientific and technical consulting center (STC) works in one of the most critical spheres that has direct influence on two, different at first sight, but very important life aspects - comfort and safety. It is a question of, on the one hand, how to increase our life quality using informational technologies; on the other hand, how much these technologies are reliable and safe, including instrumentation and control systems developed on their basis. Such technologies and systems became the integral part of our life, and continue to penetrate into our life (the good example is computerized «clever» house), they strengthen in both regional and global senses (computer systems of Nuclear Power Plant (NPP) reactor control, aerospace objects control, communications and banks control). Informational technologies, on the one hand, are irreplaceable tool of both services providing and damage probability decreasing; on the other hand, they can diversify and increase the risks of unfavorable events.