Automatically created data reduction workflows: experience with the ESO data processing system (EDPS)

The ESO Data Processing System (EDPS) is a new software infrastructure to run the European Southern Observatory's (ESO) science data processing modules ("pipeline recipes"). These recipes are used for quality control at the telescope, unsupervised production of science and calibration products for ESO's science archive, and for interactive data reduction by external science users. EDPS can be used to address all these use cases and therefore replaces individual dedicated systems that have been in use ESO up to now.