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Item 382 of 426 · Diagrams and modelling tools, 7 of 18
Level 1 DFD
Diagram Check
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Definition
Breaks the single process of the Level 0 diagram into its main processes and shows data stores and flows between them.
Example: Process 1 Borrow book, process 2 Return book, data store Loans.
Check this one: The course specification gives the Level 0 diagram; Level 1 as a refinement is standard practice. Check how your teacher draws it.
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.
- Short answer: Define, outline or explain it and tie it to the scenario.
Where it has appeared in the paper
The Software Engineering Project (Part D). Part letters follow each paper’s own layout.
Related past questions
- 2024 Software Design and Development HSC Q24 (10 marks): Social and ethical issues The Software Engineering Project (Part D) · 10 marks · old syllabus
How to use it
A model sentence
Diagram: “Breaks the single process of the Level 0 diagram into its main processes and shows data stores and flows between them.” Then apply it: Process 1 Borrow book, process 2 Return book, data store Loans.
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.
Command words used with it
No linked question shows the command word for this term. Across the past drawing and short answer questions in this bank the words used most are: Explain, Outline, Describe, Compare, Classify, Analyse. Check the actual word in your question.
Go deeper
- Flashcard: Level 1 DFD in Diagrams and Modelling Tools (Years 11 and 12) · study that set
- Memorise: Drawing rules: DFD, structure chart, storyboard, decision tree, class diagram, ERD
- Notes: Modelling tools: DFD, structure charts, storyboards, flowcharts, class diagrams (The Software Engineering Project (Year 12))
- Full term page: every question, note and marking comment for Level 1 DFD
Check yourself
Describe or sketch “Level 1 DFD”: what it shows, its parts and when you would use it.
Reveal the answer
Breaks the single process of the Level 0 diagram into its main processes and shows data stores and flows between them.
Example: Process 1 Borrow book, process 2 Return book, data store Loans.
Could be tested as: Drawing, Short answer.