1. A system for monitoring and logging events generated during the execution of an on-line service application, the system comprising: a computer operable to execute an on-line service application, and an event generator program residing on the computer, the event generator software program operable to generate critical events associated with a category and severity, generate trace events associated with a category and level, generate exception events, and generate ship assert events, the event generator program providing data and information representative of the performance of the on-line service application during execution thereof by the computer.