8. The method of claim 7 wherein the event is selected from a group comprising: an indication of an alarm; an indication of an equipment failure; and an indication of a transmission problem.
7. A method of obtaining rule-based information in an ontological system comprising: receiving an indication of an occurrence of an event from at least one managed element; wherein the event indicates a change in state of the at least one managed element; accessing a first ontology and determining selected information associated with the occurrence of the event; informing a second ontology of the selected information obtained from the first ontology and responsively obtaining at least one first rule associated with the event from the second ontology by using at least in part the selected information from the first ontology; and applying the at least one first rule and responsively determining a cause of the event.