ITPEC FE Subject A April 2025 Question 35
ITPEC FE Subject A April 2025 — Question 35 of 60
UML Generalization — identify the class diagram showing an inheritance (is-a) relationship.
Generalization uses a solid line with a hollow triangle (△) pointing to the parent class.
- •(a) — association with 1:1 multiplicity (Automobile ↔ Inspection certificate)
- •(b) — dependency (dashed arrow from Driver to Automobile)
- •(c) — generalization (Sports car inherits from Automobile) ✔
- •(d) — composition (filled diamond ◆, Tire and Engine are parts of Automobile)
UML relationship cheat sheet:
- △ hollow triangle → generalization (is-a, inheritance)
- ◇ hollow diamond → aggregation (has-a, parts can exist independently)
- ◆ filled diamond → composition (has-a, parts cannot exist without the whole)
- - - → dashed arrow → dependency
- —— solid line → association
Key rule: Generalization = solid line + hollow triangle pointing at the superclass.
AI-generated — may contain errors
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