Elena Litani is a software developer working for IBM. For the last couple of years, she has been a member of the W3C Document Object Model (DOM) Working Group, working on the DOM Level 3 specification. Since 2000 Elena has been an active contributor to the Apache Xerces2 project, working on the XML Schema and DOM Level 3 implementations in Xerces. She has also designed the XML Schema API which is implemented in Xerces. She holds a Bachelor's Degree in Computer Science from the York University (Toronto, Canada).