BINDING OBJECTS TO SCENARIOS OF USE

Scenarios are a natural and effective medium for thinking in general a nd for design in particular. Our work seeks to develop a potential uni fication between recent scenario-oriented work in object-oriented anal ysis/design methods and scenario-oriented work in the analysis/design of human-computer interaction. We illustrate this perspective by showi ng: (1) how scenario questioning can be used to systematically interro gate the knowledge and practices of potential users, and thereby to cr eate object-oriented analysis models that are psychologically valid; ( 2) how depicting an individual object's point-of-view can serve as a p edagogical scaffold to help students of object-oriented analysis see h ow to identify and assign object responsibilities in creating a proble m domain model; and (3) how usage scanarios can be employed to motivat e and coordinate the design implementation, refactoring and reuse of o bject-oriented sofware.