Job of a system analyst is directly related to the analysis of different business and technical systems. For this purpose a system analyst must know methods and tools for the identification and describing of characteristics and operating principles of different systems. The main attention of the course is devoted to the development of the systems thinking of the students by concerning the use of the methods of systems theory in the analysis of different kinds of systems. The study course is based on students’ intensive in-class activities working in small groups by solving practical tasks that allow acquiring and strengthening knowledge on such concepts as system goals and performance measures, static objects, functional objects (inputs-processes-outputs), relations, resources, environment, control loop, control objects, and feedback. Solutions of practical tasks are discussed in wide discussions when students defend their viewpoint by providing arguments rooted in the systems theory.