The maturity grid

A five-by-five grid of stack layers against maturity levels, with an illustrative profile whose weakest layer sets the overall level.

The maturity grid A five-by-five grid of stack layers against maturity levels, with an illustrative profile whose weakest layer sets the overall level. Your level is the weakest layer Illustrative fill 1 2 3 4 5 Overall 01 02 03 04 05 Overall = Level 2 · Inventoried The weakest layer sets the level; assess each layer, then read the floor. 1 Documented 2 Inventoried 3 Tested 4 Enforced 5 Continuous 01 Govern-as-Code 02 Inventory & Transparency 03 Evals & Red Teaming as Evidence 04 Runtime Controls & Observability 05 Assurance & Continuous Compliance
The maturity grid The five levels across the five stack layers, with an illustrative profile whose weakest layer sets the overall level. Assess each layer separately, then read the floor. Drawn from chapter 07.

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A five-by-five grid: the five stack layers as rows, in canonical order, and the five levels (Documented, Inventoried, Tested, Enforced, Continuous) as columns. The fill is illustrative: a function with inventory at Level 4, evals at Level 2 and assurance at Level 3, where the weakest layer, evals at Level 2, sets the overall level at Level 2, Inventoried. Assess each layer separately, then read the floor.

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A five-by-five grid of stack layers against maturity levels, with an illustrative profile whose weakest layer sets the overall level.
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*[The maturity grid](https://aigovernanceengineer.com/figures/maturity-grid) by Jorge García Aibar, aigovernanceengineer.com, v0.5.0. Licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).*