11 October saw the publication of the Commission’s High Level Expert Group on the European Open Science Cloud (EOSC), which can be found here. The Recommendations provide a solid starting point for further reflection and engagement of scientific user communities, research funders and Member States in the making of this global initiative.
The EOSC aims to accelerate and support the current transition to more effective Open Science and Open Innovation in the Digital Single Market. It should enable trusted access to services, systems and the re-use of shared scientific data across disciplinary, social and geographical borders. The term cloud is understood by the EOSC High Level Expert Group as a metaphor to help convey both seamlessness and the idea of a commons based on existing and emerging elements in the Member States, with light-weight international guidance and governance and a large degree of freedom regarding practical implementation.
The EOSC is indeed a European infrastructure, but it should be globally interoperable and accessible. It includes the required human expertise, resources, standards, and best practices as well as underpinning technical infrastructures. An important aspect of the EOSC is systematic and professional data management and long-term 
stewardship of scientific data assets and services in Europe and globally. However, data stewardship is not a goal in itself and the final realm of the EOSC is the frontier of science and innovation in Europe [Realising the European Open Science Cloud. First Report of the Commission High Level Expert Group on the European Open Science Cloud, p. 6]
