Independence changes the question
The person who built a system naturally knows what it was intended to do. That knowledge helps development, but it can also hide assumptions. An independent verifier begins from the expected behaviour, available evidence and agreed conditions.
The goal is a decision-ready result: supported, contradicted or undefined because the available evidence is insufficient.
What the verifier should establish
- The exact behaviour or claim being checked.
- The version, environment, inputs and boundaries included.
- The observations or tests that can distinguish success from failure.
- The evidence produced and whether another person can inspect it.
- Any condition that prevents a firm conclusion.
When it is useful
Independent verification has the most value when a defect is disputed, a release depends on one uncertain behaviour, a customer needs evidence before acceptance, or a team wants a second view after repeated internal attempts.
It can also help with AI-generated changes because the developer and the model may have reinforced the same mistaken premise.
What it does not establish
A bounded verification does not certify an entire product, guarantee future behaviour or replace safety, security and regulatory assurance where those are required. Its strength comes from stating the boundary precisely.
What the handoff should contain
The handoff should identify the question, scope, conditions, checks, observations, result, limits and next action. Supporting logs, code references or reproduction steps should be linked where they can be shared.
You can inspect Spotted Ridge Engineering's public evidence and read how the GDN verification method structures the work.