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Authors

Prasad Prabhu

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Prasad Prabhu

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Publications by Prasad Prabhu (bibliography)

» 1997 «

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Helander, Martin G., Prabhu, Prasad and Landauer, Thomas K. (1997): Handbook of Human-Computer Interaction (2nd Ed.). Amsterdam, North-Holland

» 1996 «

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Drury, Colin G. and Prabhu, Prasad (1996): Information Requirements of Aircraft Inspection: Framework and Analysis. In International Journal of Human-Computer Studies, 45 (6) pp. 679-695

“The information environment is seen to be one of the predominant factors for effective maintenance and inspection systems in the operation of commercial aircraft. The design issues can be stated simply as decisions on what information to present, when to present this information, and how to present this information. It is desirable that in answering these questions, the designer accounts for the cognitive abilities of humans and the demands that the task requirements generate. This paper provides a framework for information design by combining the concepts from the human factors knowledge base with the specific needs of aircraft inspection. This framework captures the interaction between the inspection task and its information requirements, leading to an analysis of the information needs of aircraft inspectors, using this framework and the cognitive control categories of Skill-Rule-Knowledge based behaviors. Based on this analysis, guidelines for information systems design have been suggested.”

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» 1993 «

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Patel, Swapnesh C., Drury, Colin G. and Prabhu, Prasad (1993): Design and Usability Evaluation of Work Control Documentation. In: Proceedings of the Human Factors and Ergonomics Society 37th Annual Meeting 1993. pp. 1156-1160.

“The present study develops a methodology for design and usability evaluation of work control documentation for aircraft inspection based on the application of human factors research in the areas of information design and aircraft inspection. A taxonomy for design of usable documentation was developed using four basic categories: Information Readability; Information Content; Information Organization; and Physical Handling and Environmental Factors. Within the framework of this taxonomy the existing work control documentation for two extreme representative conditions of aircraft inspection tasks, the A-check and the C-check was evaluated for usability. Issues for workcard redesign were identified within this taxonomy using data from usability evaluation and these were then formulated into a set of 49 guidelines for design. These guidelines were then used to develop alternate design solutions offering improved usability. The increase in usability of the redesigned documentation was measured in an on-site empirical evaluation and proved significant. This methodology is currently being extended to the design of usable information for the design and evaluation of portable computer based documentation for aircraft inspection tasks.”

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