Event Search
With 'event', we mean any occurrence in our data that deviates from a normal situation. The goal of the search is to collect all occurrences of a specific type of event, usually for further analysis. Some examples of typical event searches are:
Limit value exceeded (value based search)
Anomalous pattern (similarity search)
Deviation from a normal operating area (operating area search)
Process is in a failed/error state (value based search).
As a counter-example, using a value-based search to find when our process is active would be a Feature search , not an event search, as being active is a normal occurence.
When using a value based search, it is possible to give additional context to the search by adding another criterion with the 'AND' condition. For example we might only want to find when our tag is exceeding a limit (the event) while our equipment is running (the context).