THEA: A technique for human error assessment early in design

Abstract

Abstract: THEA is a technique designed for use by interactive system designers and engineers to help anticipate interaction failures. These may become problematic once designs become operational. The technique employs a cognitive error analysis based on an underlying model of human information processing. It is a highly structured approach, intended for use early in the development lifecycle as design concepts and requirements concerned with safety and usability – as well as functionality – are emerging. We believe the technique advances the systematic identification of human-computer interaction error through its straightforward application, requiring minimal formal knowledge of human factors or cognitive psychology.