Use Case Block
Document use cases with actors, preconditions, main flow steps, alternative flows, postconditions, and exception handling.
The Use Case block documents system interactions from an actor's perspective. It captures the complete flow including preconditions, step-by-step main flow, alternative paths, expected outcomes, and exception handling.
When to Use
Block Properties
Use Case Status
Example: Customer-Facing Use Case
A typical e-commerce checkout use case.
Example: Administrative Use Case
A back-office administration use case.
Example: System Integration Use Case
A use case involving external system interaction.