The 4VM (4 Vector Model) is a decision architecture. It combines a framework, a diagnostic schema, and a repeatable algorithm to test whether a decision should proceed before it's implemented.

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A schema organises information and gives someone a way to read a complicated situation. The 4VM works as one — a lens for evaluating a decision.

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A framework is a method built from defined parts, applied the same way every time. The 4VM's parts are Intent, Capability, Culture, and Governance.

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An algorithm runs a fixed sequence. The 4VM's: answer the diagnostic questions, score each vector, flag the weak ones, produce a RAG rating, recommend action.

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A decision engine turns structured inputs into consistent outputs. That's what the 4VM does in practice.

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A diagnostic system finds a vulnerability before it's acted on, not after.

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An evaluation protocol means the steps don't change — same order, every time, regardless of who's running it.

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The 4VM is predictive in the scientific sense: a systematic, repeatable way to test a decision, not just describe one after the fact.