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“ Civilization advances by extending the number of important operations which we can perform without thinking of them. ”

-- Alfred North Whitehead

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Anthony J. Lambert

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Publications by Anthony J. Lambert (bibliography)

1989

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Davies, Simon P., Lambert, Anthony J. and Findlay, John M. (1989): The Effects of the Availability of Menu Information During Command Learning in a Word Processing Application. In Behaviour and Information Technology, 8 (2) pp. 135-144.

“An experiment is reported investigating the transition from relying on an external memory aid for system commands, provided by a permanently visible menu, to relying on internal memory for commands. Menu availability, and the method of command entry (keyboard vs. mouse) were manipulated during the early stages of learning the basic commands required to operate a word processing application. It was found that a group which always had the benefit of a memory aid provided by a menu performed no more efficiently than a group never provided with a menu. A group initially provided with a menu, which was then withdrawn performed significantly more slowly, and with more recourse to help facilities than the later group. When the menu was permanently visible there were no performance differences between the keyboard and mouse methods of command entry. Implications of these findings for interface design are discussed.”

1988

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Findlay, John M., Davies, Simon P., Kentridge, Robert, Lambert, Anthony J. and Kelly, Justine (1988): Optimum Display Arrangements for Presenting Visual Reminders. In: Jones, Dylan M. and Winder, R. (eds.) Proceedings of the Fourth Conference of the British Computer Society Human Computer Interaction Specialist Group - People and Computers IV August 5-9, 1988, University of Manchester, UK. pp. 453-464.

“Developments in technology now allow designers to make use of a wide variety of layouts to present material at an interactive terminal. Our understanding of perceptual and cognitive processes shows that various tradeoffs will need consideration in evaluating such layouts (availability of material vs screen clutter; reliance on user memory vs use of reminders etc). We approach these through the framework of attentional switching. We shall report an experimental study which evaluates these tradeoffs in a frequently encountered text editing situation. Our editor may be set to either 'insert' or 'overtype' mode. This information can be displayed with varying prominence in a peripheral window on the screen, displayed as a change of cursor, or omitted from the screen display. We have monitored user interaction at a keystroke level during text editing sessions and show that the different forms of presentation of reminder information can result in substantial differences in performance.”

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