Preface Cinzia Cappiello1 , Sandra Geisler2,3 and Maria-Esther Vidal4,5 1 Politecnico di Milano, Milan, Italy 2 RWTH Aachen University, Aachen, Germany 3 Fraunhofer Institute for Applied Information Technology FIT, Sankt Augustin, Germany 4 Leibniz University of Hannover, Hannover, Germany 5 TIB-Leibniz Information Centre for Science and Technology, Hannover, Germany Data centricity plays a fundamental role in defining full papers. The accepted papers comprise aspects of new and disruptive business models. Many organizations trustability, architectural design, metadata management, in public and private sectors have successfully adopted data sovereignty, and report experiences from use cases information technologies to build huge repositories of based on data ecosystems. We thank all reviewers for data that they can analyze to support decision-making their excellent work! and gain a competitive advantage. However, despite the The workshop itself was held in a hybrid mode, with paramount relevance of data-driven technologies, orga- editors, speakers, as well as participants attending in nizations demand alliance-driven infrastructures capable Sydney and remotely. Approximately 30 participants of supporting controlled data exchange across diverse attended onsite, while about 40 people participated re- stakeholders and transparent data management. Data motely. The workshop was organized around two paper ecosystems (DEs) are the future of data management, presentation sessions. We were especially happy that since they allow companies to share data and collaborate we could count on Prof. Boris Otto from TU Dortmund to get valuable insights. Such benefits can be achieved University and the Fraunhofer Institute for Software and only with a proper approach for generating and sharing Systems Engineering ISST for an inspiring keynote talk knowledge. Thus, DEs aim to solve issues like managing about Dataspaces for Data Ecosystems (the abstract of the unstructured and heterogeneous data, offering various talk is included in the proceedings as well). Finally, the data-centric services, including query processing and workshop concluded with an exciting panel discussion data analytics, exchanging and integrating data while with outstanding experts of the field, namely Valentina preserving personal data privacy, data security, and orga- Janev (The Mihajlo Pupin Institute), Ernestina Menasal- nizational data sovereignty. Hence, implementing a data vas (Universidad Politécnica de Madrid), Paolo Missier ecosystem imposes challenges regarding, amongst oth- (Newcastle University), and Barbara Pernici (Politecnico ers, data management, data quality, trust, data exchange, di Milano). The discussion covered interesting experi- data integration, machine learning, and knowledge-based ences of the participants in the health and energy domain systems. Moreover, these interoperability issues have to and diversely discussed how known challenges in data be solved and data integration performed. In the First management, such as data integration, need to be recon- International Workshop on Data Ecosystems (DEco’22), sidered for data ecosystems. we aimed at publishing innovative contributions that fur- The workshop got very positive feedback from the ther the idea of data ecosystems and tackle the above audience, representatives from industry and research, challenges resulting from the complexity of data ecosys- and we, the organizers, are very grateful that we had the tems. We invited research papers which address crucial chance to organize this event. We are looking forward data ecosystem topics, such as metadata management to a potential second edition in the next year! and semantics, data sovereignty, data quality manage- ment, concept and mapping discovery for data integra- tion, or responsible and trustable data management in Cinzia, Sandra, and Maria-Esther data ecosystems amongst others. From the submissions, we could accept six high-quality Proc. of the First International Workshop on Data Ecosystems (DEco’22), September 5, 2022, Sydney, Australia $ cinzia.cappiello@polimi.it (C. Cappiello); geisler@cs.rwth-aachen.de (S. Geisler); vidal@l3s.de (M. Vidal)  0000-0001-6062-5174 (C. Cappiello); 0000-0002-8970-6282 (S. Geisler); 0000-0003-1160-8727 (M. Vidal) © 2022 Copyright for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0). CEUR Workshop Proceedings http://ceur-ws.org ISSN 1613-0073 CEUR Workshop Proceedings (CEUR-WS.org) ii