I was involved with 2 projects at SMU, ten years apart. The first, beginning in 1989, was the integration of existing student records systems with newly acquired Dunn & Bradstreet financial software. Since the new software was developed accessing a database differing from the ADR Datacom DB that was already in place in the legacy systems, my job was to “fool” the i/o modules into believing they were accessing their own native databases. This involved accessing multiple files and setting the completion codes to satisfy the calling software.