Did every row arrive?
A row-count or checksum match can pass while the business state is wrong.
Did the same business reality survive?
Coharyn compares meaning, and blocks readiness when it did not.
Semantic comparison across every layer.
- Entities and entity counts
- Lifecycle states
- Relationships and dependent objects
- Financial values and aggregates
- Transformed enums and derived fields
- Cross-system behaviour
In controlled validation, a migration passed on physical row counts while Coharyn caught a semantic state defect — readiness stayed blocked until the mapping was corrected, then reached READY. Referenced only as controlled, synthetic validation.
Evidence pack
Every mismatch is classified, prioritised and backed by evidence you can hand to a programme board.
Blocker gating
Critical mismatches keep readiness explicitly blocked. A migration is not "ready" until meaning is preserved.
Re-run to green
Correct a mapping, re-rehearse and re-reconcile — Coharyn shows exactly what changed.
Start with a private pilot.
Connect Coharyn read-only to one unfamiliar system, or several. See what it discovers, with evidence, before you commit to anything.