1. A fault management apparatus comprising: a plurality of fault generation means formed in a multilevel structure and generating fault notification when a fault is generated; a plurality of fault communication means for transferring fault notification from one of the fault generation means; a fault agent means for transferring each fault notification from a plurality of the fault communication means; and a fault diagnosis and process means for receiving the fault notification from the fault agent means, diagnosing a corresponding fault, and processing the corresponding fault using a fault model, a fault decision rule, and a fault process rule.