Oracle Database includes a feature rich job scheduler. You can schedule jobs to run at a designated date and time (such as every weeknight at 11:00pm), or upon the occurrence of a designated event (such as when inventory drops below a certain level). If a critical job fails to execute as per schedule, then the administrator should be duly notified of that failure, so that the reasons for the same can be investigated. The OraJobFailureTest checks the status of the scheduled jobs at pre-configured intervals, and reports the number of failures (if any). In the event of a failure, the administrator can use the detailed diagnosis of this test to determine which job has failed.