Ergosystem refers to any system involving human effort viewed from the ergonomics perspective.
Ergonomics itself is a field of study concerned with making human work effective and safe. International Labour organization defines ergonomics as:
The application of human biological sciences along with engineering sciences to achieve optimum natural adjustment of man and his work, the benefit being measured in terms of human efficiency and well being.
The efficiency and well being of human being during their work is dependent on matching of the equipment and methods the use with the their physiological characteristics as well as the the mental processes of perceiving and deciding used during work. Cognitive psychology makes important contribution to understanding of these mental processes.
Cognitive psychology is a branch of psychology that studies the mental processes involved in perceiving, thinking, learning and remembering. It provides insight in the way people acquire, process and store information, to help in design of equipments and operating methods that best match human capabilities of performing work requiring use of these capabilities.
The foundations of the science of ergonomics appear to have been laid within the context of the culture of Ancient Greece. A good deal of evidence indicates that Hellenic civilization in the 5th century BCE used ergonomic principles in the design of their tools, jobs, and workplaces. One outstanding example of this can be found in the description Hippocrates gave of how a surgeon's workplace should be designed and how the tools he uses should be arranged. It is also true that archaeological records of the early Egyptians Dynasties made tools, household equipment, among others that illustrated ergonomic principles.
Cognitive psychology is concerned with mental processes, such as perception, memory, reasoning, and motor response, as they affect interactions among humans and other elements of a system. (Relevant topics include mental workload, decision-making, skilled performance, human-computer interaction, human reliability, work stress and training as these may relate to human-system design.)