John Carnell is a principal architect for NetChange LLC, an IT management consulting firm specializing in enterprise application design and implementation. John is also an adjunct facility member of the Waukesha County Technical College's School of Business in Wisconsin. In addition, John is a prolific speaker and writer. He has spoken at national conferences such as Internet Expo, the Data Warehousing Institute, and the Complete Programmer's Network Software Symposiums. John has authored, co-authored, and been a technical reviewer for a number of technical books and industry publications.