Spreadsheet Failure ModeManual Workflow
Root Operational Bottleneck
Interest-rate gap exposure is measured in a treasury workbook refreshed from a debt-schedule export, so a reset can hit expense before the sheet is updated.
Control Hazard & Audit Exposure
Unhedged rate exposure surfaces only after a reset hits interest expense, and the limit report cannot show which reset was missing from the gap.
Deterministic Software ReplacementClient-Owned Architecture
Interest-Rate Gap Monitor that Flags Reset Exposure Against Policy Limits
IR-gap telemetry monitor that reads live debt resets and flags any unhedged exposure that exceeds the policy limit before the reset date.
Continuous Assertion Rule
Gap assertion: the IR-gap report cannot close if any reset within the horizon exceeds the unhedged policy limit without a hedge ticket.