ABSTRACT
Over 100 million tablet computers have been sold in the last three years. They
now have the computing power of a state-of-the-art laptop of just a few years
ago. This computing power and market saturation allows them to become viable
virtual environment (VE) trainers. Tablets have a different set of input modalities
and user expectations, which need to be taken into careful consideration when a
VE trainer is designed. The authors developed a VE call for fire (CFF) trainer
and explored the processes necessary to make it successful. In order to utilize
tablet hardware to its full potential, the authors devised the Window to the World
(W2W) paradigm as it applies to a mobile device. The authors’ tablet CFF
trainer, Supporting Arms Trainer—Mobile (SAT-M), was compared to the Marine
Corps’ current laptop CFF system, ObserverSim. Despite being in early
development, participants with and without CFF experience overwhelmingly
preferred SAT-M (p=0.002). Reasons included the ability of W2W to mimic real
world physical motion, an easier to use interface, and a decrease in extraneous
cognitive load.
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