A method and system for monitoring a performance of at least one system component of a manufacturing system. At least one event that can occur within the system is defined. It is determined whether the at least one event has occurred within the system, and altering a frequency at which the at least one...http://www.google.com.au/patents/US6831555?utm_source=gb-gplus-sharePatent US6831555 - Method and apparatus for dynamically monitoring system components in an advanced process control (APC) framework
