Tomas's Governance Dashboard — Chapter 5 Worked Example ============================================================= The fifteen-visual dense governance dashboard Tomas built on Friday afternoon and the seven-visual rebuild he shipped to the audit committee, from Chapter 5 of The Defensible Decision. Every visual’s keep/remove verdict and its reason live in this dataset. Wholly synthetic. Any resemblance to a specific real data-governance dashboard is coincidental; the fifteen-to-seven pattern is drawn from the recurring dashboard-density failure mode Chapter 5 catalogues. Files ----- - tomas-governance.csv — flat rows: one per Page-1 visual with kind, content, verdict, and reason - tomas-governance.json — canonical scenario contract with source hash What it represents ------------------ The Page-1 visual inventory Tomas built (fifteen visuals) plus the keep/remove verdict for each after running the decluttering discipline. Each verdict carries a specific reason. Five visuals are kept from the original fifteen; ten are removed. The rebuild adds a page-header treatment of the Big Idea and promotes one drill-down from the archive, for a total of seven visuals shipped. Invariants (locked) ------------------- The scenario carries executable invariants that Chapter 5’s release contract enforces: - Exactly 15 visuals in the before-inventory with ids 1–15 and no gaps. - Every visual carries a non-empty reason. - Verdicts are drawn from exactly two values: keep or remove. - Chart-family diversity in the kept set (at least 4 distinct families) — the rebuild is not a monoculture. - The core funding-decision bar chart (id 14) IS kept. - After-summary declares 7 visuals, 4 core, 3 load-bearing supporting, and page-header carries the Big Idea. Why the invariants matter ------------------------- Chapter 5’s pedagogical point is that removal directs attention. If the before-inventory shrank to 8, the decluttering pressure would soften. If the kept set collapsed to a monoculture (only bar charts), the rebuild would look like a chart-family swap rather than a decluttering pass. If the funding-decision chart got removed, the scenario would lose its anchor. The invariants keep the story pedagogically stable. What it does NOT represent -------------------------- - A specific real governance program’s dashboard. - The audit committee’s specific funding decision (the chapter frames the meeting as successful in the composite sense; the actual numbers are illustrative). - The full drill-down content (the dataset carries visual-level metadata; the drill-down details live on the archive page in the chapter’s worked example). Reproducibility --------------- The dataset ships from the book source at AlexBooks/applied-ai/ai-directed-viz/data/tomas-governance.json and is re-emitted here by AlexBooks/applied-ai/ai-directed-viz/scripts/generate-tomas-governance.mjs --site-root . License ------- Released for teaching use alongside The Defensible Decision. Use freely.