Jan-Willem Sieben is an IT Strategy Consultant at IBM, with a focus on enterprise architecture and the alignment between business and IT strategy. He has been engaged as a consultant, program manager, and enterprise architect in large transformations and innovation programs at central government organizations and a variety of commercial companies, mainly retail. Mr. Sieben has lectured on enterprise architecture for Erasmus University Rotterdam, the Netherlands; University of Amsterdam, the Netherlands; and for the Dutch Association of Enterprise Architects. He can be reached at JWSieben@nl.ibm.com.