Attribute

Term

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Definition

A variable that belongs to an object and stores its data or state (name, age, balance).

Example: 'self.balance = 0' stores an attribute.

Found in: course specifications, 2025 HSC marking guidelines, sample exam and familiarisation guidelines, school notes, past SDD papers.

Where you'll use it in the test

Syllabus area: Y11 OOP.

Question types it can appear in

Drawing: middle section of the class box
Python: Write or complete it in the online Python tool.
Multiple choice: Pick the option that matches the definition or example.
Fill in the blanks: Choose this term to complete a statement or table.

Where it has appeared in the paper

The Software Engineering Project (Part A, B). Part letters follow each paper’s own layout.

How to use it

A model sentence

General advice, built from the definition and example above

“A variable that belongs to an object and stores its data or state (name, age, balance).” Then apply it: 'self.balance = 0' stores an attribute.

In a short answer, give the definition in your own words first, then tie it to the situation in the question. Do not copy the example above unless it fits the scenario.

Go deeper

Flashcard: Attribute in The Object-Oriented Paradigm (Year 11) · study that set
Memorise: Object-oriented concepts
Notes: Object-oriented concepts (Year 11 content (Programming fundamentals, OOP, Mechatronics))
Notes: Python OOP: classes, inheritance, polymorphism, encapsulation (Python and SQL you must be able to write)
Notes: Modelling tools: DFD, structure charts, storyboards, flowcharts, class diagrams (The Software Engineering Project (Year 12))
Notes: Encapsulation (Year 11 content (Programming fundamentals, OOP, Mechatronics))
Full term page: every question, note and marking comment for Attribute

Check yourself

Explain “Attribute” in one sentence, give an example, and name a question type that could test it.

Reveal the answer

A variable that belongs to an object and stores its data or state (name, age, balance).

Example: 'self.balance = 0' stores an attribute.

Could be tested as: Drawing, Python, Multiple choice, Fill in the blanks.

Quick multiple choice

A Car class and a Truck class both take attributes and methods from a Vehicle class. This is:

Inheritance
Encapsulation
Abstraction of a loop
Recursion

Show the answer

Subclasses inherit attributes and methods from the superclass, reducing duplicated code.

Source: original (written for this study pack; not a NESA question). Open it in the multiple-choice bank.