Dave Spriet is a software developer for the IBM Toronto Laboratory. He develops tools for the WebSphere Business Integration Message Broker (WBIMB) product. He specializes in object-oriented technologies, XML, XML Schema, middleware, and UML Modeling. He is also a committer for the XML Schema Infoset Model component. Dave has a Bachelor of Science degree (Honors) in Computer Science and Statistics from McMaster University. He welcomes any comments; please direct them to spriet@ca.ibm.com.