Theo Härder's research interests are in all areas of database and information systems -- in particular, DBMS architecture, transaction systems, information integration, and Web information systems. He is author/coauthor of 7 textbooks and of more than 200 scientific contributions with >100 peer-reviewed conference papers and >50 journal publications. His professional services include numerous positions as chairman of the GI-Fachbereich "Databases and Information Systems", conference/program chairs and program committee member, editor-in-chief of Informatik - Forschung und Entwicklung (Springer), associate editor of Information Systems (Elsevier), World Wide Web (Kluver), and Transactions on Database Systems (ACM). He serves as a DFG expert (German National Science Foundation), as the chairman of the Selection Committee of the "BTW-Dissertationspreis" and is the German representative in IFIP TC-8 (Information Systems) and member of the Supervisory Board of the International Conference- and Research Center for Computer Science (IBFI) Schloss Dagstuhl. Furthermore, he is the Chairman of the Selection Committee for Computer Science of the Bavarian Network of Excellence (Elitenetzwerk Bayern). He was chairman of the Center for Computed-based Engineering Systems at the University of Kaiserslautern, member of two DFG SFBs (124, 501), and coordinator of the National DFG Research Program "Object Bases for Experts".