Lesson 7 of 12
Structured learning draftOptions with D3.js
In Data Journalism & Visual Storytelling, the way a learner handles options shapes how D3.js is used and evaluated. Policy options are compared against explicit criteria. This beginner lesson focuses on a decision or output that another person can inspect.
Learning objectives
- Explain options in the context of Data Journalism & Visual Storytelling.
- Apply D3.js to a bounded practical task.
- Evaluate the result using explicit quality criteria.
Options: from context to evidence
Options connects public need and evidence to a accountable outcome in Data Journalism & Visual Storytelling.
Define the purpose, intended user and D3.js constraints.
Include capacity, distribution and a no-action baseline.
Compare the observed result with a normal case, boundary case and stated limitation.
Policy options are compared against explicit criteria. For D3.js, distinguish performing an operation from demonstrating that it suits the stated purpose. Include capacity, distribution and a no-action baseline. Record assumptions that could change the conclusion.
Apply options deliberately
- State the Data Journalism & Visual Storytelling task and the decision it supports.
- Prepare a small D3.js case with a known input and difficult boundary.
- Include capacity, distribution and a no-action baseline.
- Compare the observed result with the expected behaviour and explain differences.
- Save the evidence, limitation and next action in a review record.
| Review point | Evidence |
|---|---|
| Purpose | The specific D3.js outcome and intended user |
| Method | The options decision, input and version or context |
| Result | Observed output plus a checked boundary case |
| Limitation | What the result does not establish and the next safe action |
Common mistakes
- Using D3.js before defining what options must achieve.
- Checking only the easiest Data Journalism & Visual Storytelling example.
- Reporting a result without its input, assumptions or limitation.
Practice activity
Apply the lesson
For Data Journalism & Visual Storytelling, complete a bounded D3.js task demonstrating options. Keep the original input, numbered method, normal test, boundary test, observed results and a 100-word self-review naming one limitation and next improvement.
Check your understanding
In Data Journalism & Visual Storytelling, which evidence best supports a options result produced with D3.js?
Lesson summary
- For Data Journalism & Visual Storytelling, options means: Policy options are compared against explicit criteria.
- A credible D3.js result includes a checked boundary, not only a successful example.
- The next lesson builds on this options evidence record.
Sources and further reading
- Open Government Data ToolkitWorld Bank - accessed 2026-08-21
- Digital governmentOECD - accessed 2026-08-21
Personal study note