ITPEC FE Morning April 2022 Question 46
ITPEC FE Morning April 2022 — Question 46 of 80
Use Case Diagram — identifies actors, their functions, and interactions.
A use case diagram shows:
- Actors — external entities (users, systems) interacting with the system
- Use cases — functions the system provides (shown as ovals)
- Relationships — links between actors and use cases
Why not others:
- (a) Activity diagram — models workflow/process flow, not actor-function overview
- (b) Communication diagram — shows message exchange between objects, not system-level actor overview
- (c) Interaction overview diagram — hybrid of activity and sequence diagrams, models interaction flow
Key rule: When the question mentions "actors," "functions they perform," and "interactions" — it's a use case diagram.
AI-generated — may contain errors
The original exam layout is preserved in the image so diagrams, formulas, tables, and code remain accurate.
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