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Lynn Y. Arnaut

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Publications by Lynn Y. Arnaut (bibliography)

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Arnaut, Lynn Y. and Greenstein, Joel S. (1988): Human factors considerations in the design and selection for computer input devices. In: Sherr, Sol (ed.). "Computer graphics: technology and applications". Academic Press

 Cited in the following chapter:

Fitts's Law: [/encyclopedia/fitts_law.html]

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Arnaut, Lynn Y. and Greenstein, Joel S. (1987): An Evaluation of Display/Control Gain. In: Proceedings of the Human Factors Society 31st Annual Meeting 1987. pp. 437-441.

Two studies were conducted to evaluate the adequacy of identifying the optimum display/control gain for an interface as a method of control-display interface optimization. The first study examined the effects of changes in both the maximum control input and the display width on target acquisition performance with a touch tablet and a trackball. The second study evaluated the effects of changes in the display amplitude, the display target width, and the control amplitude. Results from both studies indicate that gain is an insufficient specification for performance. In addition, the inadequacy of Fitts' Law in this context is discussed.

© All rights reserved Arnaut and Greenstein and/or Human Factors Society

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Greenstein, Joel S., Arnaut, Lynn Y. and Revesman, Mark E. (1986): An Empirical Comparison of Model-Based and Explicit Communication for Dynamic Human-Computer Task Allocation. In International Journal of Man-Machine Studies, 24 (4) pp. 355-363.

When both a human and a computer in a system are capable of performing the same tasks, task responsibilities may be allocated between them dynamically. This study compared two methods of human-computer communication for dynamic task allocation: explicit and model-based communication. With explicit communication the human directed the computer and the computer did not perform any actions on its own. With model-based communication the computer employed a model of the human which predicted the human's actions and the computer used this model to work on its own. Subjects performed a process monitoring task using both of these allocation methods. In addition, in half the trials subjects had knowledge of the computer's actions and in the other half they did not. The results indicated that overall system performance was always better under model-based communication, although human performance alone was better with explicit communication. In addition, overall system and human performance were higher when the human had knowledge of the computer's actions.

© All rights reserved Greenstein et al. and/or Academic Press

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