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.
Ten years later, a Y2K compliancy project was begun to curtail problems with the cutover to the new millenium. After the cutover, the platforms would them change and the older mainframe environment was to be replaced.