| Event | The raw signal received from a monitoring tool or external source. Events are visible in logs of an alert source. |
| Alert | A structured representation of one or more related events that require action. |
| Alert source | The configuration endpoint where events are received and processed in ilert. |
| Alert action (optional) | Alert actions extend ilert’s alerting and incident response capabilities to your other tools. They define what happens when an alert is created, updated, or resolved, allowing you to automate or trigger external workflows. |
| Notification | The method used to alert responders (push, SMS, voice, WhatsApp, etc.). |
| Event flow (optional) | Event flows provide an optional layer above alert sources, acting as a central hub for event ingestion. They facilitate the configuration of complex routing rules within the event flow. |