Offline capture, delayed replay

IoT and mobile devices capture events offline and upload them later, so yesterday's events arrive today. Arrival order is not occurrence order, and late data reopens already-reported slots.

Class

Case to account for

Affects

2 conversions

Detection

Received time lags captured time by hours or days.

Mitigation

Slot by captured/observed time, not receive time; treat reporting slots as revisable (watermarks / late-arrival windows).

Affected conversions

Timestamp + zonehour-of-week slot

OPEN

Slot + ISO weekUTC interval

OPEN