Functional Analysis with User Stories
The other functional analysis recipes in this chapter are fairly rigorous and use executable models to identify missing and incorrect requirements. User stories can be used for simple use cases that don’t have complex behaviors. In the other functional analysis recipes, validation of the use case requirements can use a combination of subject matter expert review, testing, and even formal mathematical analysis prior to their application to the system design. User stories only permit validation via review and so are correspondingly harder to verify as complete, accurate, and correct.
A little bit about user stories
User stories are approximately equivalent to scenarios in that both scenarios and user stories describe a singular path through a use case. Both are “partially constructive” in the sense that individually, they only describe part of the overall use case. User stories do it with natural language text, while...
