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Use Case (Consists in (Scénario(s) (Path(s) (Step by step ("…
Use Case
Consists in
Title
Brief description (goal from user perspective)
Actors (primary & secondary)
Scénario(s)
Pre-conditions (optional)
Must be true otherwise UC does not even start
Post-conditions
Characteristics about system and data
after executing the scenario
If actor achieves goal, succes scenario
Exceptional scenario = not the most common
Path(s)
From pre-conditions to post-conditions
Step by step
"Actor+Verb"
1 step done by 1 actor
Narrative form
Describes system
behaviour
Interactions between system, users and other systems
The What, not the How
One use case = One user goal
Actor
Role or entity interacting with system
Can be another system
Use case diagram
Overview of all system
use cases & actors