A method of modeling a monitorable stage in a process is provided. The method including the steps of: (a) measuring at least one input value of a parameter of the monitorable stage of the process; (a) measuring at least one output value of the parameter of the monitorable stage of the process; and (c)...http://www.google.de/patents/US6766283?utm_source=gb-gplus-sharePatent US6766283 - System and method for monitoring process quality control
