Surveillance is the monitoring of behavior. Systems Surveillance is the process of monitoring the behavior of people, objects or processes within systems for conformity to expected or desired norms in trusted systems for security or social control. See also, deviation analysis. "Sur-Veillance" is French for "watching over". Note the all seeing "eye-in-the-sky" in this London Transport poster Surveillance cameras Although the word surveillance literally means (in French) "watching ...
Wikipedia - [full article]

Surveillance Organizations