David Toman is a Professor in the David R. Cheriton School of Computer Science at the University of Waterloo. His research focuses on database theory and systems, query processing under constraints and query compilation, as well as temporal aspects of data management, and logic in Computer Science in general. Recently, he has been focusing on database schema languages based on Description Logic enriched with various forms of identification constraints. The languages investigated in this line of research are tailored to enabling compilation of queries formulated over a high-level conceptual schema to code that is executed over low-level physical layouts of data, such as records and pointer structures. He has published extensively in his research area including preparing invited contributions to several reference collections, such as the Encyclopedia of Database Systems and the Handbook of Temporal Reasoning in Artificial Intelligence. He earned Bachelor's and Master's degrees from the Masaryk University in Czechoslovakia in 1992 and a PhD from Kansas State University in 1996, all in Computer Science. He has been awarded numerous research grants, including the NATO-NSERC Postdoctoral fellowship and the Ontario Premier's Research Excellence Award.