Enterprise Subsystem definition in Computer Security terms:
Definition(s): The portion of the RFID system that analyzes, processes, and stores information collected by the RF subsystem. The primary role of the enterprise subsystem is to make the data collected by the RF subsystem useful for a supporting business process. An enterprise subsystem is made up of middleware, analytic systems, and network infrastructure.
Source(s): NIST SP 800-98
reference: CSRC Glossary