IoT systems naturally generate events.
A machine starts.
A machine stops.
A sensor changes.
An asset moves.
A temperature crosses a threshold.
A device disconnects.
Instead of constantly asking every device:
"Did anything happen?"
you can build around events.
For example:
Device
↓
Event
↓
Message Broker
↓
Services
One service might store the event.
Another might trigger an alert.
Another might send the data to an analytics system.
That's one of the things I like about event-driven architecture.
The device doesn't necessarily need to know who's consuming its data.
It just publishes the event.
Other parts of the system can react to it.
That separation can become very useful as the system grows.
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