Rules are processing statements that determine and control the behavior of cells. A rule determines whether and how events are processed. Rules consist of a set of statements that evaluate whether or not an event is processed. If the event is to be processed, the rule can include an event management function or action to perform, such as discarding the event, enriching the event data, automatically escalating an event, or automatically running an action on the event. You can write rules by using the Master Rule Language (MRL).
Rules are compiled and stored in the cell's KB. Rules and rule syntax are described in Event rules.