Evidence / Design study

Decision lineage analysis: test the difficult boundaries

An Air Force emergency management specialist and a civilian communications supervisor test radios inside a mobile operations center.

The operational question

In this illustrative evidence scenario, a evidence analyst uses AI to reconstruct an AI-assisted decision. The workflow draws on source records, rule versions, and decision receipts. Its central risk is uncertainty disappearing as evidence moves between systems. The design question is how to release the lineage assessment for authorized reviewers while preserving the separation between observed facts and interpretation. This is a proposed evaluation scenario, not a report of an Archetypal customer deployment or a demonstrated operational outcome.

Test the difficult boundaries

The most useful evaluation cases are the ones that distinguish a working rule from an attractive demonstration. Start with a permitted baseline, a clearly prohibited case, an ambiguous case, and a legitimate exception. Change one material factor at a time before testing combinations. Preserve the scenario, policy, model, configuration, response, and review label so that another person can reconstruct the result. Report failure classes separately. A missed restriction, an unnecessary block, an unsupported explanation, and an unusable escalation path affect the mission in different ways. Aggregate performance may help compare configurations, but it should not erase the particular boundary a deployment depends on.

Put the control in the workflow

Place this review immediately before the team can release the lineage assessment. The evidence analyst should see the proposed result beside the relevant parts of source records, rule versions, and decision receipts. Identify which statement is supported by a source, which is an interpretation, and which remains unresolved. Carry the separation between observed facts and interpretation into the decision record rather than relying on a reviewer to remember it from another screen. If the evidence does not establish the condition required for release, route the case to its owner with a concrete question. The interface should make the missing fact discoverable and the next action clear.

A test that can change the design

Two nearly identical cases differ only in a decisive authorization fact. The expected results should diverge for a reason the evidence record can explain. Run the case using a fixed version of the scenario and the policy under review. Ask an independent reviewer to identify the decisive fact before seeing the system’s disposition. Compare that interpretation with the result. Where they disagree, preserve both explanations and inspect whether the difference comes from the rule, the available evidence, or the interface. For decision lineage analysis, include source time, rule context, and review record in the review packet. Repeat the test after a correction and retain the original failure as part of the evidence.

Evidence to retain

The minimum useful record connects the purpose of the task, source time, rule context, and review record, the applicable policy version, and the final disposition. Add the identity or role of the responsible reviewer, the conditions attached to approval, and the unresolved questions.

Audience in this scenario

Name the intended receiving group.

Archetypal film

Documentary footage · No dialogue · Source credits