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Summary: Comparing the Usability of RoboFlag Interface Alternatives*
Sangeeta Shankar, Yi Jin, Li Su, Julie A. Adams, and Robert Bodenheimer
Department of Electrical Engineering and Computer Science
Vanderbilt University, Nashville, TN 37235 USA
[sangeeta.shankar li.su, yi.jin, julie.a.adams, bobby.bodenheimer]@vanderbilt.edu
Abstract - The RoboFlag system was designed as a testbed to
study distributed control of multiple vehicle teams with
humans in the loop. This work analyzed the RoboFlag version
2.0 interface to identify usability issues. The existing interface
was modified to create two new interfaces. The first interface
focused on improved usability, while the second focused on
improved situation awareness. A user evaluation was
conducted to determine if both new interfaces improved the
system usability over the original interface. Twenty-four
participants completed the evaluation. This paper reports the
design considerations, the experimental apparatus, and the
usability based statistical analysis. The results indicate that
both new interfaces provide improved usability over the
RoboFlag version 2.0 interface.
Keywords: Usability, User Interface Design, RoboFlag
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