Operational Status Every business service maintains an operational status that represents the overall status calculated by the map and reduce functions from the edges. The operational status uses the severities known from events and alarms. Table 1. Operational status representation Name Description Numerical code Critical Indicates a severe service-affecting event has occurred. 7 Major Indicates serious disruption or malfunction of a service or system. 6 Minor Used for troubles that have no immediate effect on service or system performance. 5 Warning An event has occurred that may require action. Use this severity to indicate a condition that should be noted (logged) but does not require immediate action. 4 Normal Informational message. No action required. 3 Cleared This severity is reserved for use in alarms to indicate that an alarm describes a self-clearing error condition that has been corrected and service is restored. Never use this severity in event definitions. Use "Normal" severity for events that clear an alarm. 2 Indeterminate No severity could be associated with this event. 1 If a business service changes its operational status, an event of the type uei.opennms.org/bsm/serviceOperationalStatusChanged is generated. In cases where the operational status changed from normal to a higher severity, an event of the type uei.opennms.org/bsm/serviceProblem is generated and has the severity of the business service. When the business service goes back to normal, an event of the type uei.opennms.org/bsm/serviceProblemResolved is generated. Use the service problem and service problem resolved events for notifications or ticketing integration. The log message of the events have the following information: Business Service Name: businessServiceName Business Service Identifier: id Previous Severity Identifier: prevSeverityId Previous Severity Label: prevSeverityLabel New Severity Identifier: newSeverityId New Severity Label: newSeverityLabel Business Service Topology Root Cause and Impact Analysis