generated from john/python-template
118 lines
2.3 KiB
Markdown
118 lines
2.3 KiB
Markdown
# Ver1 Step 4 Results: Data Model and Migration Safety
|
|
|
|
## Summary
|
|
|
|
Step 4 implementation status: **in progress**.
|
|
|
|
This document records completed migration-safety work, validation evidence, and remaining follow-ups for Ver1 Step 4.
|
|
|
|
Implemented in this step:
|
|
|
|
1. _TBD_
|
|
2. _TBD_
|
|
3. _TBD_
|
|
|
|
---
|
|
|
|
## Implemented Changes
|
|
|
|
### 1) Schema audit and invariant lock
|
|
|
|
_TBD_
|
|
|
|
### 2) Migration policy/tooling lock
|
|
|
|
_TBD_
|
|
|
|
### 3) Forward migration implementation
|
|
|
|
_TBD_
|
|
|
|
### 4) Rollback and mitigation runbook
|
|
|
|
_TBD_
|
|
|
|
### 5) Backfill implementation or explicit no-backfill decision
|
|
|
|
_TBD_
|
|
|
|
---
|
|
|
|
## Test and Verification Evidence
|
|
|
|
### Added/Updated Tests
|
|
|
|
1. _TBD_
|
|
2. _TBD_
|
|
3. _TBD_
|
|
|
|
### Validation Runs
|
|
|
|
Run and record outcomes:
|
|
|
|
- `uv run pytest --collect-only -q` -> _TBD_
|
|
- `uv run pytest -m unit -q` -> _TBD_
|
|
- `uv run pytest -m "not external" -q` -> _TBD_
|
|
- `uv run pytest -q` -> _TBD_
|
|
|
|
### Migration Rehearsal Evidence
|
|
|
|
Record migration rehearsal details:
|
|
|
|
- baseline data set used: _TBD_
|
|
- forward migration result: _TBD_
|
|
- post-migration verification result: _TBD_
|
|
- rollback/mitigation rehearsal result: _TBD_
|
|
|
|
---
|
|
|
|
## Requirement Traceability (Step 4)
|
|
|
|
| Step 4 Area | REQ Coverage | Status | Evidence |
|
|
| --- | --- | --- | --- |
|
|
| Schema lifecycle and state persistence safety | REQ-3, REQ-4, REQ-11 | _TBD_ | _TBD_ |
|
|
| Lifespan/runtime ownership continuity | REQ-7 | _TBD_ | _TBD_ |
|
|
| Explicit non-mutating production startup policy | REQ-10 | _TBD_ | _TBD_ |
|
|
| Prompt/data continuity constraints | REQ-12 | _TBD_ | _TBD_ |
|
|
|
|
---
|
|
|
|
## Operational Artifacts Produced
|
|
|
|
- `docs/ver1/ver1-step4.md`
|
|
- `docs/ver1/ver1-step4-migration-runbook.md` (_if created_)
|
|
- _TBD additional artifacts_
|
|
|
|
---
|
|
|
|
## Risks, Exceptions, and Follow-Ups
|
|
|
|
1. _TBD_
|
|
2. _TBD_
|
|
3. _TBD_
|
|
|
|
Open follow-ups to carry forward:
|
|
|
|
- _TBD_
|
|
|
|
---
|
|
|
|
## Step 4 Exit Assessment
|
|
|
|
- Schema validation against finalized V1 domain: **_TBD_**
|
|
- Forward migration path safety and repeatability: **_TBD_**
|
|
- Rollback/mitigation readiness: **_TBD_**
|
|
- Backfill risk closure: **_TBD_**
|
|
- Test and regression safety: **_TBD_**
|
|
|
|
Step 4 completion status: **_TBD_**
|
|
|
|
---
|
|
|
|
## Handoff to Step 5
|
|
|
|
Once Step 4 is marked complete, Step 5 can proceed with:
|
|
|
|
- verified migration safety baseline
|
|
- explicit rollback and recovery procedures
|
|
- reduced data-integrity risk entering private-network safety hardening |