Designing Complementary Communication Systems

We have long assumed that being face to face is the best environment for social interaction. But is "being there" the best we can aspire to? One common approach to improving face-to-face contexts is to add new communication channels — a strategy often described as creating "backchannels." In my work, I use a series of novel complementary communication systems to show how adding communication platforms to collaborative situations can be useful while also arguing for a new conceptual model of a main stage and a side stage (in the Goffman sense) that contrasts with the traditional model of backchannels. I describe a series of projects that embody this approach and explore its limits. My work covers virtual world meetings and presentations, an audience interaction tool for large groups (backchan.nl), a tablet-based system for small group discussions (Tin Can), and a platform for connecting huge distributed audiences (ROAR). In each of these projects I trace my three major research themes: understanding how conversational grounding operates in these environments, how non-verbal actions complement text-based interaction, and how people make decisions about how to manage their attention in environments with multiple simultaneous communication channels. !Thesis Supervisor ! Chris Schmandt ! Title ! Principal Research Scientist