There
are various ways to detect the existence of problem processes in
Switch:
The Problem alerts user preferences allow
specifying that a notification email should be sent to the system administrator
when communication (Email, FTP, local network) is down for more than a specified
time, or when an external process fails.
The flow element corresponding
to a problem process is shown in the canvas with a red error mark,
providing obvious feedback on its problem state (see Viewing an active flow).