Credit limits changed yesterday; the scoring model still blocks orders at old thresholds. Planning runs on new lead times; forecasts still spit old numbers. Rules and models are not two department calendars. Changes must ship as a bundle: rule effective time and model version switch together. Split across two days and the floor has two brains in between.
Split-brain symptoms: everyone is right, systems contradict. Contradiction becomes expediting and exceptions.
Switch Both in One Window
Change tickets list rule clauses and model versions. Pre-production uses the same bundle. Cutover has rollback—both roll back together. Gray release by org or material—not "model first, rules later."
- Ban rule emails sent while model training waits until next week.
- Sample contradictory tickets after go-live.
- Docs and help center update the same day.
Bundled Release Is Discipline
The XYN digital intelligence system puts rule config and model versions on one release ticket. Intelligence and policy must be born the same day. Different days mean intelligence executes expired policy—and policy blames intelligence.
Check the last rule change—did the model cut the same day? If not, merge in the next window; don't split twice for "faster launch."
