A hybrid rules-and-models architecture for the Qingshield risk engine

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A hybrid rules-and-models architecture for the Qingshield risk engine

2026-06-10 · He Che · Head of Risk, YF Pay

Device, account and transaction rules run in layers, with the rule version recorded alongside each decision.

Implementation and exception handling

New rules first run in shadow mode. Operations reviews can inspect the triggering conditions and the rule version active at the time.

Operations records

Design record YF-PAY-RFC-202603. The regular maintenance window is Wednesday, 22:00–23:00. Changes involving service interruptions are announced separately on the status page.

Related resources:Integration and operations documentation · Customer workspace · Service status