Administration Guide › Aggregation and Correlation Engines (ACE1 and ACE2) › Calculation Engine Overview › Event Singularity

Event Singularity

Event singularity uses an adapter functionality in which a new event replaces an identical event that was entered into the raw data table. The user defines which fields of the event (key fields) in the adapter are used to recognize identical entries or events. The keys form the uniqueness of the entry. They are not, in themselves, the ID, unless there is only one key field.

A new event that is considered identical to a previous one, according to the key fields, causes the time stamp of the event to change. If this change occurs, ACE1 recalculates from the earlier of two possibilities:

• The new event time stamp (if the new time stamp is earlier than it was originally).
• The old event time stamp (if the new time stamp is later than it was originally).