 Her 2002 dissertation, "Data Annotations, Provenance, and Archiving", was jointly supervised by Peter Buneman and Sanjeev Khanna.Before working at Megagon, she has been a professor of computer science at the University of California, Santa Cruz beginning in 2002, and, from 2010 to 2012, was on leave from Santa Cruz as a researcher at IBM Research - Almaden.Tan was named a Fellow of the Association for Computing Machinery in 2015 "for contributions to data provenance and to the foundations of information integration".