| 1 | # IT Domain Status v1 |
| 2 | |
| 3 | ## Scope |
| 4 | |
| 5 | Cross-domain IT operational knowledge layer: algorithms, databases, networking, distributed/runtime systems, platform reliability, and decision governance. |
| 6 | |
| 7 | ## Completion State |
| 8 | |
| 9 | Status: **Done v1 + phase-c slice closed** |
| 10 | |
| 11 | Completed artifacts: |
| 12 | |
| 13 | - `playbook-it-core-systems-v1.md` (domain map) |
| 14 | - `playbook-it-cloud-platform-economics-diagnostics-v1.md` (cloud/platform/economics/diagnostics focus) |
| 15 | - `kb-it-cloud-platform-economics-diagnostics-rules-v1.md` |
| 16 | - [`../software-engineering-evidence/kb-engineering-evidence-v1.md`](../software-engineering-evidence/kb-engineering-evidence-v1.md) (engineering knowledge by theme; мир **software.engineering-evidence**) |
| 17 | - [`../software-engineering-evidence/map-engineering-reading-v1.md`](../software-engineering-evidence/map-engineering-reading-v1.md) (tracks A–H, sources; тот же мир) |
| 18 | - [`../software-engineering-evidence/digest-engineering-reading-v1.md`](../software-engineering-evidence/digest-engineering-reading-v1.md) (legacy; superseded by kb; тот же мир) |
| 19 | |
| 20 | ## Definition of Done Check |
| 21 | |
| 22 | - IT map and operating contracts: done. |
| 23 | - Source-backed expansion through multi-batch digest: done. |
| 24 | - Pending roadmap item "start phase-c slice": done (closed in this pass). |
| 25 | - Canonical index synchronization: done. |
| 26 | |
| 27 | ## Active Guardrails |
| 28 | |
| 29 | - Evidence-first over tool-preference. |
| 30 | - Reliability-speed-cost triad for architecture decisions. |
| 31 | - SLO + error-budget policy for critical services. |
| 32 | - Cardinality and telemetry cost controls in diagnostics design. |
| 33 | |
| 34 | ## Remaining Backlog (After v1) |
| 35 | |
| 36 | - Continue periodic freshness updates for high-volatility platform docs. |
| 37 | - Expand domain-specific exemplars per active project stack. |
| 38 | - Run naming/index cleanup as separate hygiene phase. |
| 39 | |
| 40 | ## Alias Window |
| 41 | |
| 42 | Closed. Legacy aliases were retired after semantic-primary stabilization. |
| 43 | |
| 44 | ## Next Handoff |
| 45 | |
| 46 | IT domain operationally closed at v1 with phase-c baseline complete. |
| 47 | Next step: cleanup pass (index compaction and alias-window reduction). |
| 48 | |
| 49 | |