Arguing that understanding what lies behind the apparent usability of direct manipulation style interfaces might not only help in building better interfaces, but can also draw attention to possible side effects, this paper uses examples from a prototype data manipulation system to pursue a characterization of direct manipulation interfaces as…

This research investigates the ways people learn from multimedia and how navigational patterns can be incorporated into the design structure. The paper begins with a discussion of present navigational research and then presents the results from the initial empirical work, including a pilot study of primary and secondary children using multimedia…