Speed and accuracy of command and control inputs are critical to mission success and the very survival of tank crews in the U.S.Army M1A2 main battle tanks.New contorl methjodologies (i.e.,voice and touch input) are considered for upgrades to the next main battle tank.Proponents argue that voice and touch are fast,natural modes of control.If so,when voice and touch are evaluated against the tank commander's raditional interfaces (e.g.,push buttons,joystick cursor controller),mission task completin times should be quicker and no less accurate.Voice and touch input also should reduce cognitive workload compared to trraditional tank input devices.The findings were ocnsistent with these hypotheses.
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