The 9th international conference „Wirtschaftsinformatik“ of the German speaking Information Systems community is focusing on “Business Services: Concepts, Technologies, Applications”. It is being held 25-27 February 2009 in Vienna, Austria. Experts from research and industry come together to discuss innovative approaches for the design of business information systems (both, in the commercial and the public sector) and their impact on the transformation of business processes, enterprises, and markets.