Automated Repair Service Bureau: System architecture

The four main functions being served by the Automated Repair Service Bureau are (i) Customer Line Card Maintenance — a large, complex data base problem; (ii) Trouble-Taking and Tracking — a simple transaction problem; (iii) Loop Testing — a process-control problem; and (iv) Trouble-History Review — a large, filter, sort, and count report-generation problem. All of these functions were implemented among different computers, which were then networked together to form the full ARSB architecture. This decomposition resulted in an architecture that has been adaptable to Bell Operating Companies' needs over a full decade.