The Way Of User Interface Design  

Good user interface design requires a marriage of technical communication, human factors, graphic design, and cognitive psychology. A good user interface designer (or visual designer) is a combination of writer and artist, therapist and engineer. But, one of the central skills in this fields is communication. The user interface is communication—it is the primary link between the person using the product and the actual code making the screens move and respond.

Towey, Ingrid K. STC Proceedings (1994). Presentations>User Interface>TC