Lesson 10 of 12

Structured learning draft

Workflow with Plotly

In Data Visualization - Tableau & Python, the way a learner handles workflow shapes how Plotly is used and evaluated. An analysis workflow keeps raw data immutable and separates transformations. This intermediate lesson focuses on a decision or output that another person can inspect.

Learning objectives

Explain workflow in the context of Data Visualization - Tableau & Python.
Apply Plotly to a bounded practical task.
Evaluate the result using explicit quality criteria.

Instructional figureOrdered timeline

Workflow: from context to evidence

Workflow connects question and source data to a checked finding in Data Visualization - Tableau & Python.

Question and source data

Define the purpose, intended user and Plotly constraints.

frames

Workflow

Organise scripts so every output can be rebuilt.

produces evidence for

Checked finding

Compare the observed result with a normal case, boundary case and stated limitation.

Takeaway: Workflow is credible only when the result can be traced back to its purpose, inputs and constraints. Workflow is the decision layer between the starting context and evidence that the result is fit for purpose.

An analysis workflow keeps raw data immutable and separates transformations. For Plotly, distinguish performing an operation from demonstrating that it suits the stated purpose. Organise scripts so every output can be rebuilt. Record assumptions that could change the conclusion.

Apply workflow deliberately

State the Data Visualization - Tableau & Python task and the decision it supports.
Prepare a small Plotly case with a known input and difficult boundary.
Organise scripts so every output can be rebuilt.
Compare the observed result with the expected behaviour and explain differences.
Save the evidence, limitation and next action in a review record.

Instructional figureProcess flow

A worked Plotly evidence path

A four-step worked example for applying workflow to Plotly, including a boundary test and revision.

Known input

Preserve the original Plotly case and expected result.

test

Normal test

Confirm the basic path behaves as expected.

challenge

Boundary test

Expose an assumption in the workflow method.

improve

Revision

Change the method, rerun both cases and record the limitation.

Takeaway: A successful normal case is not enough; the difficult case must influence the final method. The boundary result changes the method before the evidence is accepted.

workflow evidence record
Review point	Evidence
Purpose	The specific Plotly outcome and intended user
Method	The workflow 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 Plotly before defining what workflow must achieve.
Checking only the easiest Data Visualization - Tableau & Python example.
Reporting a result without its input, assumptions or limitation.

Practice activity

Apply the lesson

For Data Visualization - Tableau & Python, complete a bounded Plotly task demonstrating workflow. 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 Visualization - Tableau & Python, which evidence best supports a workflow result produced with Plotly?

A polished Plotly output without its input The input, expected behaviour, normal and boundary results, and a limitation A screenshot showing the tool opened A claim that the method always works

Lesson summary

For Data Visualization - Tableau & Python, workflow means: An analysis workflow keeps raw data immutable and separates transformations.
A credible Plotly result includes a checked boundary, not only a successful example.
The next lesson builds on this workflow evidence record.

Sources and further reading

The Python TutorialPython Software Foundation - accessed 2026-08-21
User Guidescikit-learn - accessed 2026-08-21

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