Foundations of the complex activity theory. Part 1. The structures of complex activity. Uncertainty and generation of complex activity

The foundations of the complex activity theory are described, extending the methodology to the case of any complex (having a non-trivial multi-level internal structure) human activity. The structural elements of complex activity are considered, its logical, causal and process structures are constructively described. It is shown that the system of coordinated formal models ensures the practical application of the results both for practitioners and for scientists engaged in research of general principles of organization of activity (practical, scientific, etc.) and of management of organizational and technical systems. It is for the first time that the description formalism of the complex activity is proposed together with the subject – the organizational and technical system.