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A. J. G. Babu

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Publications by A. J. G. Babu (bibliography)

1989

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Spoto, Cheryl G. and Babu, A. J. G. (1989): Highlighting in Alphanumeric Displays: The Efficacy of Monochrome Methods. In: Proceedings of the Human Factors Society 33rd Annual Meeting 1989. pp. 370-374.

“Highlighting is used to attract attention to displayed information. Prior work has called into question the efficacy reverse video as a highlighting method in alphanumeric displays. Brightness is highly recommended in guideline documents, but no empirical study of its efficacy in alphanumeric displays has been published. An experiment was conducted to investigate the efficacy of these methods in monochromatic, alphanumeric displays. Search time was significantly faster for reverse video than for high intensity highlighting. Reverse video may attract attention better than high intensity video. Heavy use of reverse video may aid in the systematic search of unhighlighted items. The results are analyzed in terms of a mathematical model.”

1988

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Kincaid, J. Peter, Braby, Richard, Mears, John E. and Babu, A. J. G. (1988): Computer-Based Job Aids which Adapt to Technician's Skill Level. In: Proceedings of the Human Factors Society 32nd Annual Meeting 1988. pp. 1237-1240.

“This paper describes current developments in automating the processes to author technical information (TI) and deliver it using microcomputers. It describes desirable characteristics which support the presentation of TI for technicians varying in skill levels. Addressed are human factors issues relating to information access, user acceptance, and display formats. Programming is being done in Smalltalk/V, an object oriented language, on a Zenith 248 computer, which is compatible with the IBM PC/AT. The project emphasizes low cost authoring and delivery of information which traditionally has been contained in paper technical manuals. Our intent is to support the Department of Defense initiative to shift paper to paperless technical manuals.”

1987

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Thacker, Pratapray (Paul), Tullis, Thomas S. and Babu, A. J. G. (1987): Application of Tullis' Visual Search Model to Highlighted and Non-Highlighted Tabular Displays. In: Proceedings of the Human Factors Society 31st Annual Meeting 1987. pp. 1221-1225.

“This paper presents a comparison of experimental results with predictions obtained from Tullis' (1984) model of search times for tabular displays. Three levels of information density for displays with and without highlighting were used in a series of experiments. The highlighting of information was done by adding graphic boundaries (lines). Two levels of highlighting were used. A question-answer type of visual search was performed for two different tasks. The search time results are discussed and a method for utilizing Tullis' model for highlighted displays is suggested.”

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