Dr. Michael Wegelin is the managing director of AddOn Software GmbH in Neu-Ulm, Germany, where he is responsible for the ABAP and SAP NetWeaver Process Integration area. He studied physics at the Karlsruhe Technical University, Germany, and at the Tübingen University, Germany. During his studies, he worked as a C++ developer for Schärfe System Reutlingen and developed graphical user interfaces on Windows for measuring devices, among other things. After finishing his studies, he worked as a software developer for Think Tools GmbH in Starnberg, Germany; K.I.S. Krankenhaus-Informationssysteme GmbH in Pliezhausen, Germany; and h/m systemtechnik GmbH & Co. KG in Reutlingen, Germany.

Michael Englbrecht is a senior consultant at AddOn Software GmbH in Neu-Ulm, Germany, where he is responsible for the Enterprise Java and SAP NetWeaver J2EE/JEE area. His work focuses on integrating systems with the SAP Java landscape and planning and implementing service-oriented infrastructures, among other things. Previously, he worked as a software developer and consultant for Tiscon Infosystems Ulm and MATHEMA AG. He holds a degree in computer science and studied at the University of Applied Sciences in Augsburg, Germany.