A relational DBMS from Computer Associates (CA) that runs on minis and mainframes. IDMS (Integrated Data Management System) was developed at GE in the 1960s and marketed by Cullinane, later renamed Cullinet and then acquired by CA in 1989. There are a variety of CA-IDMS products, such as CA-IDMS/R for the relational DBMS, CA-IDMS/DDS for its distributed version and so on.