An Ecological Approach to Human-Machine Systems
Human Factors is unlike other traditional divisions of knowledge and is more than the mere haphazard interdisciplinary collaboration between psychology and engineering. As such, it requires a unique theoretical structure that reflects the opportunities and constraints intrinsic to emergent complex dynamical operational spaces derived from the interplay of human, machine, task, and environment.
Flach, J. M.,
& Hancock, P. A.
(1992). An Ecological Approach to Human-Machine Systems. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 36 (14), 1056-1058.