Information Technology, Memory, and Language
2008
Analogue designs are usually best for interfaces in perceptual-motor tasks where skilled performance is graded-we can quantify the performance of task elements, such as operating controls and reacting to traffic using scales or scoring systems. Symbol-based human-computer interaction (HCI) is much more brittle. Symbols always have a certain arbitrariness about them that increases the requirement for learning and the likelihood of forgetting. When recognizing a symbol, we are usually either right or wrong-there are no shades of gray.