A System for Evaluating Screen Formats

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Abstract
In previous research, six parameters for objectively evaluating screen formats were identified. Based upon analyses of usability data from 520 displays, regression equations were developed for predicting user's search times to extract information from the displays as well as their subjective ratings of the displays. Recently, a program for measuring these parameters, recommending possible format improvements, and making usability predictions was developed for PC-compatible computers. This program, called the Display Analysis Program, is described and a sample output for a poorly designed screen presented. A revised version of the screen illustrates how the recommendations from the program can lead to an improved design.

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