Main directions of A.I. Galaktionov's engineering-psychological studies (To the 100th Anniversary of Birth)

The article is dedicated to the 100th anniversary of the Russian engineering psychologist Anatoly Ivanovich Galaktionov (1924–1996). The life path of a scientist is described. The works of A.I. Galaktionov are discussed in a number of areas of his research in the field of engineering psychology: development of a conceptual model of professional activity; research into the psychological structure of activity; engineering-psychological design of control systems and information display. It is concluded that in the conditions of the modern technological paradigm, his concept of a multi-level structure of a conceptual model of activity deserves the closest attention of developers of systems of various levels and purposes.