The research and registry project QUIPS - Quality Improvement in Postoperative Pain Therapy - is a multicenter, interdisciplinary benchmark project that aims at improving acute pain therapy in German hospitals. The aim is to improve the quality of outcomes in postoperative pain therapy through a standardized collection of a few quality indicators, their analysis and feedback to the participating hospitals. Web-based automated feedback enables internal and external benchmarking as well as continuous monitoring of progress. More than 150 hospitals in Germany participate in QUIPS.