ABSTRACT
Scenario-based design elaborates a traditional theme in human factors and ergonomics, namely, the principle that human characteristics and needs should be pivotal considerations in the design of tools and artifacts. In scenariobased design, descriptions of usage situations become more than orienting examples and background data, they become first-class design objects. Scenario-based design takes literally the adage that a tool is what people can do with it, and the consequences for them and for their activities of using it.
