Professor at the KRDB Research Centre for Knowledge and Data. Research interests include knowledge representation and reasoning, ontology languages, description logics, conceptual data modeling, data integration, graph data
management, data-aware process verification, and service modeling and synthesis. In 2012-2013 visiting researcher at the Technical University of Vienna as Pauli Fellow of the "Wolfgang Pauli Institute". Program chair of PODS 2015, and general chair of ESSLLI 2016.