The topic of discussion is the increasing value of ergonomics knowledge to the interaction designer. Ergonomics is necessary for 3-dimensional, tangible product design where issues of physical fit and comfort are critical. But for interaction designers in the 2-dimensional world of the display screen, ergonomics has largely been...irrelevant. For example in most cases, interfaces are designed for existing, defined hardware that are out of the control of the interaction designer. But things are changing.
The continuing convergence of digital interfaces with physical products is putting interaction designers in a position where knowledge of anthropometrics, kinesthetics, and other non-cognitive human capabilities is valuable for creating effective design solutions.