Two experimental tools to support usage-centered design using l use cases and canonical abstract prototypes are described. The models and methods of usage-centered design are outlined and the new tools are described briefly. Categories and Subject Descriptors D.2.2 [Software Engineering]: Design Tools and Techniques – user interfaces. H.5.2 [Information Interfaces and Presentation]: User Interfaces – graphical user interfaces (GUI),
Larry L. Constantine, Pedro Campos