Rapid prototyping is a powerful tool both for analyzing user requirements and for involving the users in the design of suitable user interfaces. With it, the analysts/designers have users focus on frequent presentations of incomplete prototypes in order to get realistic expressions of the users' needs and wants. If not properly managed, these presentations may miss their objectives and either become high pressure sales pitches for designs or endless cycles of minor changes. Suitable management methods are required to ensure that the use of prototyping provides its expected benefits The process oriented nature of prototyping requires some different management techniques from those used to manage more traditional and artifact oriented analysis and design activities.