Verification vs validation — a working framework

Two words the industry uses interchangeably and shouldn't. The distinction changes what you measure and who you trust.

By T.J. Muro

Published

Updated

Verification and validation are not synonyms. Treating them as one is why most ad reporting collapses under audit. This framework separates them, defines the evidence each requires, and shows where the two connect.

Verification answers: did the ad reach a real human, in a real environment, at a real moment. Validation answers: did that reach do anything a business cares about. The framework maps signal, source, timing, and outcome across both — and marks the exact points where platform-reported metrics stop qualifying as evidence.

The attached deck includes the reference architecture and the audit checklist we hand to design partners.