summaries of the underlying events and the resources that are affected by those events. Another example is temporal aggregation, when the same problem is reported over and over again by the event source, until the problem is finally solved.

Event de-duplication is a special type of event aggregation that consists in merging exact duplicates of the same event. Such duplicates may be caused by network instability (e.g., the same event is sent twice by the event source because the first instance was not acknowledged sufficiently quickly,