The act of ‘design’ has been a rich and difficult subject of study in the context of information systems for many years (see, for example, [Adelson and Soloway 1985, Guindon et al 1986, Sen 1997]). A number of design studies have been conducted, relying on techniques such as verbal protocols or videotapes to gain insight into the many facets of system design. Typically, such studies (a) have been planned around a simple design task, (b) have involved a single design session, and (c) have focused the data analysis on identification of repeated design behaviors or problems.