Structure chart data couple (empty circle)

Diagram

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Definition

An empty circle indicates data movement between subroutines (usually passed as parameters).

Example: An arrow with an empty circle labelled mark.

Found in: course specifications.

Where you'll use it in the test

Syllabus area: Diagrams and tools.

Question types it can appear in

Drawing: Draw or label it in the online drawing tool.
Multiple choice: Pick the option that matches the definition or example.
Matching or table: Match it to its description, example or category.

Where it has appeared in the paper

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

How to use it

A model sentence

General advice, built from the definition and example above

Diagram: “An empty circle indicates data movement between subroutines (usually passed as parameters).” Then apply it: An arrow with an empty circle labelled mark.

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: Structure chart data couple (empty circle) in Diagrams and Modelling Tools (Years 11 and 12) · study that set
Memorise: Drawing rules: DFD, structure chart, storyboard, decision tree, class diagram, ERD
Full term page: every question, note and marking comment for Structure chart data couple (empty circle)

Check yourself

Describe or sketch “Structure chart data couple (empty circle)”: what it shows, its parts and when you would use it.

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