Ergonomics. The term is derived from the greek word ergon, meaning work, & nomoi, meaning natural laws. Hence the meaning "science of work & the person's relationship to that work". It looks into interactions between humans & the methods to optimize human well-being & overall system performance.
Great question. There are three domains of ergonomics: physical, cognitive, and organizational. Although the former is the most widely known, cognitive ergonomics is a burgeoning field whose relevance is rapidly growing. Cognitive ergonomics is essentially ergonomics of mental processes. The focus is creating a balance between human cognitive abilities and limitations, and the machine, task, and environment. Th.