The impact of body-movementbased interaction on engagement of peripheral information displays : A case study

Sammanfattning: With the growth of ubiquitous computing, people are getting familiar and receptive to the idea of using non personal devices in public spaces. An example of such a possible device are the large ambient displays which can be found in airports, subway stations, malls, and bus stops. While most of these devices are not interactive, some offer interaction through touchscreen. This study explored the impact of body-movement-based interaction on engagement of a peripheral information display. We developed and exhibited two versions of the same peripheral information display in a public space. The first version offered interactivity while no interaction was available in the second version. We counted the number of people who watched/interacted with the displays and timed how long they spent doing so. Qualitative data was also gathered through semi structured interviews and non-participant observations. The statistical analysis provide evidences that the mean time spent watching/interacting with the peripheral information display is higher when there is interaction. We are 95% confident that the interval from 0.25 to 13.71 seconds contains the difierence of mean time spent watching/interacting with the display between the two versions. The interviews and observations indicated that the interaction implemented is easily understandable by the public in few seconds without the need of instructions.