The Four-Spine Standards Model
A portfolio is not a big project; a contract is not a project attachment; a subcontract is not a vendor row. Each layer hangs on its own governing kernel, its ISO twin, and its US-government overlay. Adopted from the parallel-track CANON model.
Spine
Governing kernel
ISO twin
US-gov overlay
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Cross-cutting standards on every spine: PMI EVM · Risk · WBS · Scheduling · Estimating · Business Analysis · Governance; ISO 21508 (EVM) / 21511 (WBS) / 31000 (risk) / 10007 (config); EIA-748
categories only, EVMSIG, IPMDAR, DCMA 14-point; ITAR/EAR/CUI markings. Copyrighted standards are cited by locator; FAR/DFARS/GAO/DCMA public-domain text may be shown. See
References and
Traceability.