1. An Advanced Process Control (APC) system for controlling a processing tool in a semiconductor processing environment, the APC system comprising: an APC server providing a plurality of APC related applications; an Interface Server (IS) coupled to the APC server; a database coupled to the IS and APC server; and a GUI component coupled to the APC server, wherein the IS comprises means for coupling to a processing tool, means for coupling to a plurality of process modules, and means for coupling to a plurality of sensors.