ISO MSS Lifecycle Matrix

Which top-level ISO management-system standards matter for IT projects, how do they relate in authority, and what must happen in each lifecycle phase (initiation → decommissioning)?

edition Topic-TK/v01 companion MD Topic-WB/v01 author Droplet 2026-09-25 not on carousel yet

Topic-TK/v01 Human topic site · Companion AI workbook Topic-WB/v01 Topic_IsoMssMatrix_v01_Droplet.md · Same fact graph · Seed: 6 Gemini/Docs PDFs · Not a substitute for purchased ISO texts

Start here · essence

Only Type A requirements standards (“shall”) are certifiable; ISO/IEC 27001 is the InfoSec certifiable core. Roughly ~45 Type A MSS share the Harmonized Structure (Clauses 4–10). For IT PM, eight standards are in scope (T1: 27001, 20000-1, 42001 · T2: 9001, 22301, 37001, 28000, 55001). Centrepiece: the Master Operational Integration Matrix — those eight × five lifecycle phases, with phase-gate artifacts and an effort heatmap.

✓ Type A = certifiable audit benchmark [SRC-003] [SRC-004] · ✓ Eight IT-relevant standards [SRC-005] · ✓ Matrix + 4 gates + heatmap [SRC-006] · ~ Page counts / editions from seed chat — not store-reverified [SRC-005]

Formative synthesis from a Gemini/Docs chat seed (6 PDFs). Curated map — not a substitute for purchased ISO texts; not legal advice.

FieldValue
Seed questionWhich top-level ISO MSS matter for IT projects, how they relate in authority, and what must happen each lifecycle phase?
JobCurate Type A MSS landscape for IT PMs: eight standards, HS, phase×standard matrix with gates.
Host (planned)iso-mss-matrix.tiesa.tech · private · not on carousel yet
NodesN1–N8 standards · N9 Hierarchy · N10 Harmonized Structure · N11 Phase gates
Official 27001iso.org/standard/27001 · 27001:2022 store [SRC-002]

How to read

  1. Map / Sessions — pick a standard or structure node (landscape strip or portrait cards).
  2. Deep dive — full node content (also the Corkboard flip-side).
  3. Diagrams — hierarchy · phase gates · IMS · 27000 family.
  4. Workbench — filter the operational matrix by Tier / Phase.
  5. Sources / Trail / Limitations — provenance bank.