Severity Types
Events are divided into three categories; Information, Warning and Error.
Information Event
Information events 
signal a noteworthy event that has occurred from actions performed by the user or the system. Information events do not require any specific user actions.
Warning Event
Warning events 
signal a potentially serious condition that could affect the system performance or result in injury.
Error event
Error events 
signal a serious condition, such as a failed service, that almost exclusively requires the user to make changes to the setup or the configuration in order to continue.
