The coordinator control subsystem (CCTL) is the transaction management subsystem that communicates with the DRA, which in turn communicates with DBCTL. In a CICS-DBCTL environment, the CCTL is CICS®. The term CCTL is used in a number of DBCTL operator commands and in the IMS™ manuals. CICS users of DBCTL should take the term CCTL to mean a CICS system that is attached to IMS by means of DBCTL.