Former director of the computer centre at FHTW Berlin
Has continuously led numerous national and international research projects
Served as principal investigator in multiple EU-funded, nationally funded, and industrial projects
Developed the Virtual Design collaboration platform in early 1996
Continued work on hypermedia and content management systems with the Multimedia Information Repository (MIR) and Hypermedia Learning Object System (hylOs)
Key contributions in multimedia networking include the Tree Morphing Protocol for mobile SSM sources and AuthoCast for authenticated multicast