Sites where I am involved:

• Research group of Prof. Dr. Manfred Broy (member)
• International Journal on Software and Systems Modeling (SOSYM). (Editor-in-Chief)
• Series of International Conferences on Unified Modeling Languages (UML'xx). (Steering Committee)
• The pUML group (founding member)

Previous Workshops & Conferences hosted here:

• ECOOP '97 Workshop 5 - Precise Semantics for Object-Oriented Modeling Techniques
• OOPSLA '97 Workshop 27 - OO Behavioral Semantics (with an Emphasis on Semantics of large OO Business Specifications)
• ECOOP '98 - Second ECOOP Workshop on Precise Behavioral Semantics (with an Emphasis on OO Business Specifications)
• OOPSLA '98 - Seventh OOPSLA Workshop on Behavioral Semantics of OO Business and System Specifications
• ICSE '98 - Workshop on Precise Semantics for Software Modeling Techniques
• Modellierung 2004 - Praktischer Einsatz von Modellen

Projects:

• ViSEK - Virtuelles Software Engineering Kompetenzzentrum
• NAME - Network on Agile Methodologies Experience
• WEIT - Weiterentwicklung des Entwicklungsstandards für IT-Systeme des Bundes auf Basis des V-Modell-97