Soldiers in modern military context are often required to sit in front of workstations and execute timeor mission critical commands using computers. These actions can mostly be broken down into verybasic tasks such as pointing, dragging and text entry which are common tasks related to humaninteraction with a graphical user interface (GUI). In addition, many of these operations are performedin vehicles while on the move. In this study, we conducted experiments to evaluate the performances ofinput devices for pointing, dragging and text entry tasks on a tracked vehicle. The results and findingsare documented in this paper. Results indicate that touchscreen has better performance for non-precisepointing tasks and the thumbstick performed better for dragging tasks. The keyboard performed betterfor text entry tasks.
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