Abstract
This paper presents the interdisciplinary work undertaken by six photon and neutron research institutes to develop a common approach and implementation to data management plans in the context of the Photon and Neutron Open Science Cloud project. The paper introduces the context of the project and then describes the approach based on the concept of active data management plans and a common template of questions. The comparison of and choice of a common tool, the Data Stewardship Wizard, is then described. Finally, the deployment of the tool and its integration in the different facilities’ data workflows is described in more detail. The paper concludes with a summary of the achievements, the lessons learned, and which issues still need to be addressed.