Journal

Notes from the audit desk.

Short essays on signals, schema design, and the awkward parts of keeping a fraud signal audit app honest.

Payment terminal at a retail counter

12 min · Operations

False positives hiding in checkout queues

Tracing decline reasons back to signal owners in a UK retail stack.

 Charts and analytics on a large display

9 min · Schema

Building a signal taxonomy that survives audit

Naming claims before your tool acquires another undocumented layer.

 Trading style charts on a monitor

8 min · Rules

Velocity rules that age badly

Why last year’s thresholds quietly punish this year’s good customers.

 Mobile phone showing a lock screen metaphor

11 min · UK context

Open banking signals in a UK context

Consent journeys as evidence, not just another checkbox in the trail.