Student Information Systems
Student Information Systems (more commonly, SIS), is the university-wide information database system at Columbia. The version of SIS used at Columbia was designed by Columbia in the 1990s. As the university's only interschool information system, it is very difficult to upgrade, as taking it offline would effectively bring the Registrar, Columbia Housing, Dining Services, and grading systems to a standstill.
The system's interface is still run in an old Windows 3.0-style DOS prompt, though most departments use new graphical interface software that interfaces directly with the SIS mainframe.