Answer/Solution: An incident is an unplanned interruption of an IT service or a reduction in the quality of an IT service. A failure of a configuration item that has not yet had an impact on an IT service is also an incident. For example: The failure of a hard disc in a mirrored set of discs.
More examples of incidents: the computer in the classroom won’t switch on, the video projector won’t switch on, I can’t access the internet on the desktop in the office, the self-service printer on the C5 floor has a paper jam, I can’t log in to Iscte e-learning.