Specialists once studied how operators worked around batch-computing constraints; interactive systems absorbed much of the role.
Punch-card workflow observer no longer exists as a living trade. Here is what erased it, and which profession took on the work.
1940–1969
Human factors
Researchers study how systems fit perception, movement and work under real constraints.
What else was happening then
1949
Human factors becomes organized
Ergonomics and human-factors societies formalize research on people, tools and work.
1960
Licklider imagines man-computer symbiosis
J. C. R. Licklider argues for interactive computing that augments people.
1967
Card, Moran and Newell begin cognitive HCI
Cognitive psychology increasingly informs models of computer use.
1983
The Psychology of Human-Computer Interaction
Card, Moran and Newell publish an influential HCI framework.
Where that work lives now
Studies how people use products, turning observed behavior, needs and frustrations into evidence teams can design around.
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