Illustration from Altova XML Spy

Discoveries - Define workflows that output discovery data only

Rules - Define generic workflows.  Workflows have no impact on state

Tasks - Define on demand workflows

Monitors - Define workflows to monitor and report state

Diagnostics - Define on demand / automated workflows triggered by monitor state that do not change system state.

Recoveries - Define on demand / automated workflows triggered by monitor state that changesystem state.

Overrides - Change the default monitoring behavior based on types, groups or instances