EVENT

1. An occurrence or happening, usually significant to the performance of a function, operation , or task. ( 188 ) 2. In Integrated Services Digital Networks ( ISDN ), an instantaneous occurrence that changes at least one of the attributes of the global status of a managed object . Note: An event (a) may be persistent or temporary, thus allowing for functions, such as surveillance, monitoring , and performance measurement, (b) may generate reports, (c) may be spontaneous or planned, (d) may trigger other events, and (e) may be triggered by one or more other events.