0:00–0:20Start with one defined system
A fictional organisation uses an AI-assisted recruitment tool to support candidate shortlisting. The organisation is concerned about whether disabled applicants could experience different outcomes.
What BiasLens preserves: System purpose and decision context are defined before any bias conclusion is attempted.
0:20–0:45Separate evidence from assumption
The vendor says the model is fair, but the organisation has no accessible test report, no clear affected-group breakdown and incomplete documentation about the population used for validation.
What BiasLens preserves: Vendor assurance is recorded as an assertion. Missing validation evidence remains an explicit unknown.
0:45–1:10Identify possible bias pathways
BiasLens examines preexisting, technical and emergent pathways. In this fictional case, representation gaps may indicate preexisting risk, interface barriers may create technical risk, and population or use changes may create emergent risk.
What BiasLens preserves: Possible pathways are documented without presenting them as proven causes.
1:10–1:35Handle fairness signals carefully
A fictional outcome comparison suggests a difference between groups, but the available sample is limited. BiasLens treats the result as a signal requiring investigation rather than proof of discrimination.
What BiasLens preserves: Evidence strength, sample limitation and the need for further investigation remain visible together.
1:35–1:55Create a traceable finding
The output records what was observed, the evidence status, the rationale, limitations and a recommended next action — for example, obtaining better denominator data, testing accessibility and requesting stronger vendor evidence.
What BiasLens preserves: The organisation gains a documented evidence trail rather than a binary pass/fail label.
1:55–2:00Move to action
The question changes from ‘Is this AI biased?’ to ‘What does our evidence support, what remains unverified and what must we investigate next?’
What BiasLens preserves: That is the operating discipline BiasLens is built to support.