Text entry interface design requirements at a glance

A critical challenge in creating text entry interfaces for noncomputer-based devices is to devise a highly usable solution that blends aesthetic and functional concerns. As psychologists, we study user and environmental factors that facilitate usability, although this research often is not presented in a format that designers can use. This article presents a framework for guiding the systematic and comprehensive analysis of design requirements through the assessment of critical psychological components. We highlight several solutions from typing and mobile devices that can be directly transferred into a new system and note those areas that typically call for customized solutions.