InfoTouch: an explorative multi-touch visualization interface for tagged photo collections

We report on a design exploration into how a large multi-touch tabletop display can be used for information visualization. We designed an interface where users explored a tagged photo collection by bi-manual manipulation of the collections' tag cloud. User feedback showed that despite the availability of multi-touch most of the actual interactions were single-touch. However, some particular natural actions, such as grabbing the tag cloud and partitioning it into two parts, were often carried with both hands. Thus our user study indicates that multi-touch can act as a useful complementary interaction method in information visualization interfaces.