The User-Interface Technology Branch is investigating a task paradigm for improving performance at future navy surface ship consoles. This paper presents partial results of a series of studies investigating cursor pointing and menu-selection tasks relevant to console use. A software aid for tactical symbol selection was created which uses constant visual feedback, reduced cursor travel requirements, and increased effective symbol size. This method was also applied to menu item selection. Significant user performance speed enhancement for symbol selection without a corresponding increase in errors was demonstrated for trackball and various touchtablet devices.
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References
1.
FittsP.M.The information Capacity of the Human Motor System in Controlling Amplitude of Movement, Journal of Experimental Psychology, 47, 381–391.
2.
CardS.K.MoranT.P.NewellA.The Psychology of Human Computer Interaction, Lawrence Erlbaum Associates, Hillsdale New Jersey, 1983, p 55.
3.
ParngA.K.An Automated Test of Fitts' Law and Effects of Target Width and Control-Display Gain Using a Digitizer Tablet, Technical Document 1214, Naval Ocean Systems Center, San Diego, 1988.
4.
GreensteinJ.S.ArnautL. Y.Input Devices in HelanderM., (Ed.), Handbook of Human-Computer Interaction, Elsevier, New York, 1988.
