Big Graphics and Little Screens: Model-Based Design of Large Scale Information Displays.

摘要

The design of large scale information displays is addressed. Problems with traditional approaches to display design are discussed. It is argued that the evolving nature of humans' roles in complex systems will exacerbate these problems. A model-based framework for display design is proposed involving system models, task models, and humans' models of systems and tasks. This framework provide a basis for exploring three types of display design problems, including problems of evolution, deviation, and change. Use of the overall conceptual framework is illustrated in the context of an application involving design of computer-based graphical displays for a maintenance information system. Traditional maintenance information includes large graphical drawings that are difficult to portray on the small screens of computer-based maintenance information systems. This research investigates the design of graphical displays using display abstraction and aggregation as design parameters. A display's aggregation level reflects the field of view of a display, such as component, assembly, or system level diagrams. A display's abstraction level reflects the representation contained in a diagram, such as a component's form, function, or purpose in an assembly. The results from five experiments with experienced maintenance personnel are presented and design guidelines are suggested. Displays, Troubleshooting, Job performance aids, Maintenance. diagrams, graphical material