In Germany, development cooperation is the policy field with the longest tradition in evaluation. All major German organisations in development cooperation use the instrument of evaluation - however, to different degrees with regard to qualitative and quantitative aspects. This study on behalf of the German Federal Ministry for Economic Cooperation and Development (BMZ) analyses methodically analyses the way the different organisations evaluate, how much they know about the impact of their projects and programmes, and if or how their evaluation systems can be integrated a larger whole. Until now, there has been no comparable analysis, neither in other German policy fields nor in development cooperation of other European countries. Axel Borrmann arbeitet als Senior Economist im Hamburgischen WeltWirtschaftsInstitut (HWWI) (www.hwwi.org). Schwerpunkte seiner Forschungsarbeit sind internationale Handels- und Entwicklungspolitik sowie Entwicklungszusammenarbeit. Er ist als Gutachter für zahlreiche nationale und internationale Organisationen tätig. Axel Borrmann is Research associate at the Hamburg Institute of International Economics (www.hwwi.org). His main areas of research are international trade and development policy and development cooperation. He has been working as an expert for numerous national and international organisations.