Db Migration Strategy

Trigger Boundary

• •Use when schema, indexing, transaction, migration, or durability behavior is in scope.
• •Do not use for HTTP/API boundary design; use api-*.
• •Do not use for cluster provisioning details; use infrastructure-as-code or kubernetes-*.

Goal

Ensure data correctness, performance, and lifecycle reliability.

Inputs

• •Change scope and risk profile
• •Domain evidence for schema migration sequencing, rollout safety, and rollback viability
• •Operational, compliance, and rollout constraints

Outputs

• •Migration execution plan with stage gates
• •Decision log for schema migration sequencing, rollout safety, and rollback viability
• •Verification checklist with measurable pass-fail criteria

Workflow

1. •Clarify outcomes and hard constraints for schema migration sequencing, rollout safety, and rollback viability.
2. •Produce options and select an approach for schema migration sequencing, rollout safety, and rollback viability.
3. •Evaluate trade-offs across security, performance, operability, and maintainability.
4. •Verify decisions using dry-run migration and rollback rehearsal.
5. •Publish decisions, residual risks, and accountable follow-up actions.

Quality Gates

• •Scope and assumptions for schema migration sequencing, rollout safety, and rollback viability are explicit and reviewable.
• •Decision rationale is backed by evidence instead of preference.
• •Rollout and rollback criteria are defined when production impact exists.
• •Residual risks have owners, due dates, and verification steps.

Failure Handling

• •Stop when rollback path is undefined for destructive or high-risk steps.
• •Escalate when accepted risk exceeds team policy thresholds.