Design an IoT alarm rule that accounts for freshness, corroboration, and human escalation.
Night alarm The desk sees "flood alarm true," but the supporting telemetry is stale and incomplete. A reliable alarm rule needs confidence, not just a true/false flag. Primitive lens Freshness -> aggregation -> trigger Separate the reading quality from the signal rule and the action rule. Each layer can reduce or amplify false confidence. Alarm=true easy to fire, easy to distrust People can trust the alarm because uncertainty is explicit. The higher the physical consequence, the more explicit the confidence rule must be. 01 Fresh 02 Corroborate 03 Escalate Check age The water sensor reconnected and sent an old retained…
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