human systems integration
an area of research that investigates the means by which knowledge about the cognitive and physiological requirements for optimal human task performance (e.g., attention, decision making, biomechanics) can be translated into the effective design of complex technologies used to support that performance. The focus of research is primarily on advanced computer-based systems (e.g., those used in air traffic control) and specifically on their effects on the people using them and the efficacy of their design features (e.g., alarm signals, visual interfaces, automation) in supporting efficient, safe operations, particularly during high-risk situations. See ergonomics; human factors.