The OXDBS is an ontology-extended version of the eXist-DB (which is a native XML database system)
The XdsRig is an Open-Source IHE XDS test environment; it is based upon NIST components and components from the Eclipse OHF projects
The DACUS is a "Distributed Address Card Update System". This project intended to implement a distributed address and contact database following a publish/subscribe architecture.
The α-Flow (aka "alpha-Flow") research project. α-Flow is a document-oriented approach for inter-institutional process support in medicine and healthcare. It combines workflow support with groupware capabilities.
The ERA is an Eclipse-based editor for Requirements Analysis (the requirement model is based on RIF/ReqIF standards)
Some minor involvements:
The COMQUAD research project: COMponents with QUantitative properties and ADaptivity
The Comaera research project: Comaera Quantitative properties of software components and performance prediction
The CoBRA DB research project: Component Based Runtime Adaptable DataBase
The fCMDB research project: Federated Configuration Management Database for Siemens IT Solutions and Services
The M2EtIS research project: Massive Multiplayer EvenT Integration System
Peers whose dissertations I am familiar with (and they mentioned me in their acknowlegdements):