Online Administrative Student Information System (OASIS) is the online tool students use to register for classes, pay tuition and fees, check their academic progress, and update their official address and contact information as well as their emergency contact information. For technical support call 312.369.7001, Monday through Friday from 8 a.m. to 6 p.m., or e-mail IT at clientservices@colum.edu any day, including the weekends. Visit oasis.colum.edu to log in to OASIS.