 ADR later purchased the Datacom/DB database management system from Insyte Datacom and developed the companion product, IDEAL (Interactive Development Environment for an Application’s Life), a fourth-generation programming language.Another popular ADR product was "The Librarian", a version control system for IBM mainframe operating systems, now known as CA Librarian.In 1978, it was reported that "The Librarian" was in use at over 3,000 sites; by a decade later that number had doubled.