  Given the increasing complexity of many sociotechnical work domains,
effective teamwork has become increasingly crucial. While there is evidence
that face-to-face communication contributes to effective teamwork, methods for
understanding the time-varying nature and structure of team communication are
limited. In this work, we combine sensor-based social analytics of Sociometric
badges (Rhythm Badge) with two visualization techniques (Dynamic Complexity
Heat Maps and Network Visualizations) to advance an intuitive way of
understanding the dynamics of team interaction. To demonstrate the utility of
our approach, we provide a case study that examines one team's interaction for
a Lost at Sea simulation. We were able to recover transitions in the task and
team interaction as well as uncover structural changes in team member energy
and engagement, which we visualize using networks. Taken together, this work
represents an important first step at optimizing team effectiveness by
identifying critical transitions/events in team communication and interaction
patterns.
