Just as items only provide raw data and triggers are independent from them as they can access virtually any item's historical data, triggers, in turn, only provide a status change. This change is recorded as an event just as measurements are recorded as item data. This means that triggers don't provide any reporting functionality; they just check their conditions and change the status accordingly. Once again, what may seem to be a limitation and lack of power turns out to be the exact opposite as the Zabbix component in charge of actually sending out alerts or trying to automatically resolve some problems is completely independent from triggers. This means that just as triggers can access any item's data, actions can access any trigger's name, severity, or status so that, once again, you can create the perfect mix of very general and very specific actions without being stuck in a one-action-per-trigger scheme.

Unlike triggers, actions are also completely independent from...