Migration Pattern — Enterprise Notes

Pattern: Migration
Component: enterprise-notes.md
Version: 1.1 | Updated: 2026-07-16

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Audit trail

Retain: consumer inventory, phase PRs, recon outputs, soak metrics, cutover approver (SSO), PONR acknowledgment. Link to change ticket.

Separation of duties

Role	Allowed	Forbidden (High-risk)
Migration author	Design + implement phases	Sole cutover approval
Data owner	Approve recon semantics	Skip recon
SRE / release	Execute cutover window	Contract without soak file

Regulated data

Personal or financial data migrations need data-owner sign-off on reconciliation meaning — not only “row counts match.”

Anti-claim

Passing internal gates is not an external audit opinion on data integrity. Map into existing change-advisory processes where required.