LEARN // SYSML
Use-Case Diagram — Actors & Goals
Actors, the goals they pursue, and how use-cases relate.
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◤ ◤ DEFINITION
What it is
A SysML Use-Case diagram shows actors (humans or external systems), the use cases (goals) they pursue with the system, and «include»/«extend» relationships between use cases.
◤ ◤ PURPOSE
Why it exists
Frames the system from the outside-in: who uses it, to do what, under what conditions — the starting point for L0/L1 derivation.
◤ ◤ SEE ALSO