The main address verification functionality is encapsulated in one or more

function servers

. A function server is a running instance of the Informatica data verification engine. Each function server runs as a separate process, isolating the main process from any issues related to address processing. If a function server fails, the event is reported back to the caller as an error, the function server process is terminated, and a new function server is started.

The

IDVE.h

header file contains the functions that you use to define and run the address jobs.