Scheduling is accurate; floor progress is fake: gun not scanned, counter jumped, network down. Planners add orders to green boards while warehouse already mismatches. When collection devices fail, planning fails—execution eats signals, not willpower. Scanners and sensors are production equipment: spares, inspection, failure detection—not IT drawer consumables.
The first fragile point of a digital line is often not the server—it is the gun and the cable.
Collection Needs Health Metrics
Station no-scan timeout alerts, output vs counter deviation alerts, gateway offline alerts. Gun battery and damage in shift-start checks. Failures get hot spares—swap within ten minutes, not wait for procurement. Paper slips only after fault declared—and backfilled.
- Critical stations dual-channel: scan fail uses backup gun—no verbal reporting.
- Loose sensors in equipment PM—same checklist as main machine.
- Planning trust metric: below collection completeness threshold, auto-lower trust and prompt manual check.

Spares Beat New Algorithms
The XYN digital intelligence system exposes collection completeness to planning—no fake precision when incomplete. Maintaining guns and sensors maintains planning's eyes. Broken eyes plus APS only arranges errors more neatly.
Count yesterday's stations with collection interruption over ten minutes. Until that drops, buy spares and inspections—not another optimization engine.
