“…The open system concept is of paramount importance for sociotechnical systems since the worker is, according to [19], a complex, dynamic, stochastic, nonlinear, nonsteady, and self-organizing system. The concept of an open system grounds on the definition proposed by Bertalanffy [30] for living organisms and their interaction with the environment defined by the steady-state theory, according to which an open system is characterized by a steady-state achieved by some stimulus after a disturbance.…”