Scenario-driven search finds more exceptions
Ian F. Alexander · 2002
Requirements elicitation tends to focus on stakeholders' primary goals, whether these are modelled as processes or use cases. However, exception cases often outnumber 'normal' cases and can drive project cost. This paper describes an experiment to see whether scenarios could effectively drive the search for exceptions. Experienced engineers asked to specify a small system which found three times as many exceptions by searching all scenario steps as by examining draft requirements.