Singleton Event

There are events that by design or system configuration should be seen in a log only once or not seen at all if code responsible for them was executed before tracing session. For example, the launch of certain services during system initialization should not be seen again when we trace system activity long after that. It can also be just messages from singleton²⁶ objects in the application log. The appearance of extra Singleton Events may point to design violations or some abnormal system events such as process restart. The latter may Intra-Correlate (Volume 3, page 347) with the start of the fault handling process such as WerFault.exe in Windows Process Monitor logs (Guest Component, Volume 5, page 304).

²⁶ http://en.wikipedia.org/wiki/Singleton_pattern