Non-visual mirror Northstar Home · no customer data
The Estate Worth Moving
Which assets deserve migration, and which outputs are equivalent at business grain?
Narrative sequence
- Estate map — Datasets, jobs and dashboards form a dependency estate around the source warehouse.
- Usage evidence — Bounded usage evidence dims abandoned assets without erasing dependencies.
- Cross boundary — Selected assets cross the boundary with stable asset keys.
- Coarse parity — Coarse row-count parity appears green.
- Strict parity — Grain, value, null and category checks break three false matches.
- Accepted and blocked — Accepted, blocked and deliberately retired assets remain visible.
- Final estate — The final estate reports migrated, retired and unresolved—not 100% migrated.
| Evidence | Value | Status / meaning |
|---|---|---|
| Source assets | 24 | profiled |
| Used in 90 days | 15 | observed |
| Migrate | 12 | accepted |
| Retire | 6 | bounded |
| Blocked | 3 | dependency |
| Row-count parity | 15 | coarse |
| Grain parity | 12 | strict |
Trivial baseline
Migrate every asset and accept equal row counts as parity.
Sensitivity
Expand the usage window and compare grain, values, nulls, categories and dependencies; seasonal assets may reverse retirement decisions.
Strongest counter-case
Cached or seasonal assets may look unused; a longer usage window reverses some retirement decisions.
Verdict
SURVIVES: 12 strict matches. DOWNGRADED: three row-count matches fail at grain or category.
Synthetic example. Deterministic fictional records; not customer data or achieved customer results.