Evaluation Methods for the Ergatic System Reliability Operator

Abstract

In modern society, multipurpose hardware, which together with a human operator represents ergatic system, is commonly used to perform various tasks. Effectiveness of such systems depends on reliability of both components. Modern science helps to find ways to improve reliability of hardware at design and production stages, which leads to their effective functioning. However, despite high hardware performance, quality selection, staff training and coaching, the accidents, disasters, disruptions and drop in ergatic task performance continue to take place. 40% to 80% accidents and emergencies in various fields of activity happen due to human error as a result of lack of preparation, adverse psychological factors and fatigue. Therefore, search for ways of assessing reliability of ergatic system operators is an urgent scientific challenge aimed at determining a critical moment of its deterioration. The article suggests methods for assessing reliability of ergatic system operator based on the theory of fuzzy logic, which allows for assessment in terms of individual character and variability of psychological, physiological and professional capabilities and characteristics of operator and his/her sensitivity to the effects of external and internal factors.