ITPEC FE Morning October 2022 Question 46
ITPEC FE Morning October 2022 — Question 46 of 80
UML Sequence Diagram — shows interactions between objects in time series.
A sequence diagram displays:
- Objects as vertical lifelines
- Messages as horizontal arrows between lifelines
- Time order flows top to bottom
Why not others:
- (a) Activity diagram — models workflow or business process flow (like a flowchart)
- (b) Component diagram — shows structural organization of system components and dependencies
- (d) State transition diagram — shows how an object moves between states based on events
Key rule: "Interactions between objects in time series" = sequence diagram.
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