Question-first section
Open with the decision or hypothesis, then show the chart and evidence needed to answer it.
Data app interface
Every chart starts with a question and ends with a traceable claim.
A quiet analytics surface for research dashboards, public-data portals, notebooks, and evidence-led product reports.
Civic service response time
Median response time fell after triage routing launched
Hours to first response, weekly median
Routing changed in week 4; inspect table for raw values.
baseline
stable
intervention
Reusable data interface patterns
These components keep analysis inspectable: chart frames, notebook cells, provenance badges, annotations, and table fallbacks.
Visible provenance
Keep source, update time, sample size, and caveats near the chart instead of hiding them in footnotes.
Accessible inspection
Hover may enrich, but keyboard, touch, summary, and table paths must still reveal the data.
Table fallback is part of the design
The chart is a claim; the table is the trace. Both belong in the interface contract.
Week
Median hours
Cases
Note
Week 3
18.4
1,204
Before routing change
Week 6
11.2
1,188
After routing stabilized