How many types of events are classified by ITIL?

ITIL classifies events into three distinct types: informational events, warning events, and exception events.

Informational events are routine messages that inform the service management team about regular operations, indicating that everything is working as expected. Warning events signal a potential issue that requires attention but does not necessarily indicate an immediate problem. Exception events are those that signify critical incidents or failures that have occurred, necessitating urgent action to resolve service disruptions.

Recognizing these categories aids in effectively managing IT services, as it helps teams prioritize their responses based on the nature and urgency of the event. This structure not only supports operational efficiency but also enhances the overall service quality by ensuring appropriate responses according to the severity of the events.