This article describes the evolution of computer interface research issues from text-based interface design guidelines to more complex issues, including media selection, interface design, and visual design. This research is then integrated into the Analysis-based Message Design (AMD) process. The AMD process divides the interface design process into four action steps: (1) identify conditions--analyzing the environmental, learner, or instructional needs which define or create boundaries for the instructional product; (2) select design features--using instructional and learning theories, media selections research, and personal experience to support design feature selection; (3) resolve conflicts--giving special consideration to features which are desirable with regard to one or more conditions and undesirable with regard to another condition; and (4) create the design layout--using the ABC's R US design principles (alignment, balance, contrast, chunking, repetition, utility, and simplicity). Explanations and graphic examples of these principles are provided. (DLS)