Irina Kogan is a software engineer at IBM Toronto Lab working on XML performance in DB2 with both developers and customers. Her areas of interest include XML storage and structural updates, XQuery, OLTP and benchmark development. Irina has B.Sc. and M.Sc. in computer science from York University. Her Masters degree focused on semantic integrity and good design principles in databases. Before joining IBM in 2004, she worked on XML and Java development at Siemens in Germany.