People do, of course, design object-oriented programs, and they do so successfully. But they do so by mapping them onto procedures. A use case document recognisable by Ivar Jacobson lists the steps taken by the user to achieve a goal, and documents the flow of data through the system. This being too wordy and not Agile™ enough, it is replaced by the user story, but what is a story other than a sequential description of events with a beginning, a middle, and an end