Evidence Architecture

Evidence Architecture is StackWeaver's three-layer model describing the full lifecycle of compliance evidence: (1) Created & Captured at the source, (2) Stored & Connected across systems and mapped to controls, and (3) Verified & Consumed on demand by auditors, regulators, and investors.

Explanation

Layer 1 -- Created & Captured: evidence is generated by the work teams already do (deploys, tests, access events, approvals) and captured automatically, not screenshotted.

Layer 2 -- Stored & Connected: evidence is centralised, deduplicated, and correlated so a single record can satisfy multiple controls and frameworks at once, with integrity guarantees.

Layer 3 -- Verified & Consumed: the stored evidence is exposed through views tailored to each consumer -- an auditor sees control coverage, an investor sees posture, a regulator sees filings -- without a manual export.

Why it matters

Most evidence problems are architecture problems: proof exists but is scattered, unmapped, or stale. A defined architecture makes coverage and freshness visible.

Mapping once and reusing across frameworks is what makes multi-framework readiness economically viable for a startup.

How StackWeaver applies it

StackWeaver designs and implements each layer for the client, choosing capture points, integrity model, and consumption views appropriate to their frameworks and stage. The <a href="/evidence/evidence-lifecycle/">Evidence Lifecycle</a> walkthrough traces one record through all three layers; the <a href="/evidence/control-mapping/">Control Mapping</a> evidence shows Layer 2 in action.

The <a href="/solutions/evidence-automation/">Evidence Automation solution</a> implements the capture and validation layer; the <a href="/evidence/client-portal-walkthrough/">Client Portal Walkthrough</a> demonstrates the consumption layer for auditors and investors; the <a href="/resources/trust-readiness-playbook/">Trust Readiness Playbook</a> provides the full multi-framework implementation roadmap.

Key points

Layer 1

Created & Captured -- evidence is generated by the work teams already do (deploys, tests, access events, approvals) and captured automatically, not screenshotted.

Layer 2

Stored & Connected -- evidence is centralised, deduplicated, and correlated so a single record can satisfy multiple controls and frameworks at once, with integrity guarantees.

Layer 3

Verified & Consumed -- the stored evidence is exposed through views tailored to each consumer: an auditor sees control coverage, an investor sees posture, a regulator sees filings, without a manual export.

What this relates to