Like a rule, an event management policy processes events and performs event management.
However, unlike rules, an event management policy is easily defined interactively through the console rather than being manually written in MRL uses an event selector by which you specify the criteria used to select events for processing by the policy. The event selector allows you to specify a number of events that meet selection criteria. This gives the event policy greater flexibility than a rule. It does not require compilation because it is implemented by using predefined data classes and precompiled rules.