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Currently most computer based simulations rely exclusively on computer generated graphics to create the simulation. When training is involved, the method almost exclusively used to display information to the learner is text displayed on the cathode ray tube. MICROEXPERT Systems is concentrating on broadening the communications bandwidth between the

Author: NASA Technical Reports Server (NTRS)

Source: https://archive.org/


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• N90- - 206,66 - Broadening the Interface in Simulation 24007 Based Bandwidth Training Larry E.
Somers MICROEXPERT Systems, Inc. Ventura Blvd.
Suite 210, Calabasas CA 91302 ABSTRACT HUMAN FACTORS Currently most computer based simulations rely exclusively on computer generated graphics to create the simulation. When training is involved, the method almost exclusively used to display information to the learner _s text displayed on the CRT. MICROEXPERT Systems is concentrating on broadening the communications bandwidth between the computer and user by employing a novel approach to video image storage combined with sound and voice output. An User capacities and needs have been described as a major consideration in designing user interfaces (Shneiderman 1987). The use of several media devices can help to better meet the needs and match the capacities of the user. Described below are several of the more important factor we have considered in developing a multimedia interface. Cognitive Load. A measure of the complexity, or difficulty of a task is the number of resources it requires (Moray 1977). As described by Baecker (Baecker 1987) the cognitive load of a task correlates with such factors as: • learning time • fatigue • stress expert system is used to combine and control the presentation of analog video, sound, and voice output with computer based graphics and text. We are currently involved in the development of several graphics based user interfaces for NASA, the U.S.
Army, and the US.
Navy. This paper will focus on the human factors considerations, software modules, and hardware components being used to develop these interfaces. • proneness to error. It is important that the interface help minimize the cognitive load on the user. Thus, for example, the design should consider the different loads imposed in making menu selections with a one, two, or three button mouse, respectively. It may turn out that the one-button mouse has the lowes...






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