'<p class=bio><img src=/images/tools/speakers/vollmann.jpg width=100 align=left><b> Detlef Vollmann </b> is an independent consultant supporting several Swiss companies with the design of object-oriented systems.  Currently, he is the Chief Archtitect for a highly configurable and mobile system for workflow management.  He has authored and taught more than 150 courses on topics ranging from UNIX through advanced C/C++, OO analysis and design, design patterns to manager oriented briefings on software development process, enterprise application integration and XML.  He  is the  author of several journal articles about XML and C++.  '