Organizations are increasingly required to share data with one another and with government bodies. This trend is largely driven by Europe, which emphasizes the removal of legal and technical barriers to data exchange. Data spaces (or data ecosystems) are being established for specific sectors. Various data ecosystems are also emerging in the Netherlands—such as the Federated Data Ecosystem (*Federatief Datastelsel*), which focuses on the reuse of data within the public sector. Danny Greefhorst provides an overview of these developments and clarifies what they mean in practical terms for your organization. After this session, you will know which developments to monitor, what choices need to be made regarding your data architecture, and where to begin.