A petrochemical facility must issue emission alerts within 15 minutes of a threshold exceedance. Two architectures are evaluated: a cloud-only design (readings sent to the cloud every minute, cloud checks thresholds, alert issued via cloud notification; total latency 2 to 5 minutes) and an edge-assisted design (edge server checks thresholds locally on every reading, alert issued directly; total latency 10 to 30 seconds). Both meet the 15-minute requirement under normal conditions. Why was the edge-assisted design chosen?

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Accepted Answer

The edge design continues checking thresholds and issuing alerts even during an internet outage, while the cloud-only design would fail to detect exceedances during connectivity loss, creating a compliance gap

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The edge design uses more accurate threshold values because they are configured locally

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The edge design produces alerts faster, and speed is the only factor that matters in regulatory compliance

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The edge design costs less to operate because it transmits less data to the cloud

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