# Nadia's Q3 Revenue by Region — Chapter 7 Worked Example

> The regional-revenue dataset behind Nadia's hand-built vs Copilot-first-draft comparison in Chapter 7 of *The Defensible Decision*. One quarter, four regions, $28.4M on plan — and one region hiding a material miss.

**Wholly synthetic.** Any resemblance to a specific real enterprise cloud-revenue quarterly report is coincidental; the numbers are constructed to make the on-plan-hides-miss pattern visible.

## Files

- [`nadia-q3-region.csv`](nadia-q3-region.csv) — flat rows: one quarter total + four regional rows
- [`nadia-q3-region.json`](nadia-q3-region.json) — canonical scenario contract with source hash

## What it represents

The Q3 revenue-by-region snapshot from a CFO reporting cycle. The aggregate quarter number ($28.4M) lands exactly on plan; the regional split shows NA -5.3% behind plan while APAC, EMEA, and LATAM all beat theirs. Chapter 7 uses the dataset to contrast a Copilot-generated first-draft bar chart (alphabetical sort, no plan reference, descriptive title) with the hand-built chart Nadia has produced quarterly for two years (variance-ascending sort, plan-reference ticks, single accent on the region that missed, Big-Idea title).

## Invariants (locked)

The scenario carries executable invariants that Chapter 7's release contract enforces:

- Quarter total revenue: `$28.4M`, exactly matching quarter plan (`$28.4M`).
- Exactly four regions: APAC, EMEA, LATAM, NA (alphabetical in the source; the hand-built chart re-sorts).
- Regional revenue sums to the quarter total exactly (`4.9 + 8.3 + 2.6 + 12.6 = 28.4`).
- Regional plan sums to the quarter plan exactly (`4.7 + 7.9 + 2.5 + 13.3 = 28.4`).
- NA is the only region below plan (`12.6 vs 13.3 = -5.3%`); the other three beat plan (`+4.3%`, `+5.1%`, `+4.0%`).
- The AI first-draft state uses alphabetical sort with no comparison encoding.
- The hand-built state sorts by plan-variance ascending with per-region plan reference ticks and a single accent on the NA bar.

## Why the invariants matter

Chapter 7's pedagogical point is the difference between a chart that shows the numbers and a chart that shows the argument. If NA's miss weren't material, or if any other region also missed plan, the contrast Fig 7.4 draws (CFO sees the miss on the hand-built side; CFO does not see the miss on the AI-draft side) would soften into ambiguity. The single-region-miss-inside-an-on-plan-quarter shape is the exact scenario the five-principle rubric was built to catch, so the numbers are locked to keep that scenario stable.

## What it does NOT represent

- Actual enterprise cloud-revenue data from any real company.
- Nadia's Q4 forecast (the chapter's arc closes at the Wednesday-morning review; Q4 is left to the reader's discipline).
- The five-principle rubric scoring for Fig 7.3 (that lives in the chapter prose; the dataset only carries the numbers behind both chart states).

## Reproducibility

The dataset ships from the book source at `AlexBooks/applied-ai/ai-directed-viz/data/nadia-q3-region.json` and is re-emitted here by `AlexBooks/applied-ai/ai-directed-viz/scripts/generate-nadia-region.mjs --site-root <site-root>`. The generator writes the source SHA-256 into `nadia-q3-region.json` so drift between the book and this site is detectable.

## License

Released for teaching use alongside *The Defensible Decision*. Use freely.