"... the systems approach is, in fact, a constant debate between different positions on society." ">> The basic idea of systems thinking << is on the one hand extremely popular and on the other hand completely unpopular. It’s popular because it sounds good to say we think the whole system, but it’s also completely unpopular because it can seem like a whole set of meaningless things.” How can a Hungarian military researcher, especially an engineer dealing with the decision-making information system of air defense, contribute to the processing of this complex issue? When I faced this problem, I thought I would publish those results, which were created during the description of the "environment" of the decision-making information system of air defense.