Agile Development eschews the formal documentation but some projects, particularly Government contracts, still require formal requirements documentation.
For a more fluid development process, make your user stories independent, negotiable, valuable, estimable, size appropriate and testable.
With this eBook, you’ll learn how you can adopt agile principles within your own organization or work with Agile development vendors.
Whether your project requires a User Story, Use Case, or both, depends on the project, the collaboration available, the level of formality, and the upfront research required.