Open Science is a paradigm in which scientific data, procedures, tools and results are shared transparently and reused by society. The European Open Science Cloud (EOSC) initiative is an effort in Europe to provide an open, trusted, virtual and federated computing environment to execute scientific applications and store, share and reuse research data across borders and scientific disciplines. Additionally, scientific services are becoming increasingly data-intensive, not only in terms of computationally intensive tasks but also in terms of storage resources. To meet those resource demands, computing paradigms such as High-Performance Computing (HPC) and Cloud Computing are applied to e-science applications. However, adapting applications and services to these paradigms is a challenging task, commonly requiring a deep knowledge of the underlying technologies, which often constitutes a general barrier to its uptake by scientists. In this context, EOSC-Synergy, a collaborative project involving more than 20 institutions from eight European countries pooling their knowledge and experience to enhance EOSC’s capabilities and capacities, aims to bring EOSC closer to the scientific communities. This article provides a summary analysis of the adaptations made in the ten thematic services of EOSC-Synergy to embrace this paradigm. These services are grouped into four categories: Earth Observation, Environment, Biomedicine, and Astrophysics. The analysis will lead to the identification of commonalities, best practices and common requirements, regardless of the thematic area of the service. Experience gained from the thematic services can be transferred to new services for the adoption of the EOSC ecosystem framework. The article made several recommendations for the integration of thematic services in the EOSC ecosystem regarding Authentication and Authorization (federated regional or thematic solutions based on EduGAIN mainly), FAIR data and metadata preservation solutions (both at cataloguing and data preservation—such as EUDAT’s B2SHARE), cloud platform-agnostic resource management services (such as Infrastructure Manager) and workload management solutions.

开放科学是一种范式，其中科学数据、程序、工具和结果被社会透明地共享和重用。欧洲开放科学云 (EOSC) 计划是欧洲的一项努力，旨在提供一个开放、可信、虚拟和联合的计算环境，以执行科学应用程序并存储、共享和重用跨边界和科学学科的研究数据。此外，科学服务正变得越来越数据密集，不仅在计算密集型任务方面，而且在存储资源方面。为了满足这些资源需求，高性能计算 (HPC) 和云计算等计算范式被应用于电子科学应用程序。然而，使应用程序和服务适应这些范例是一项具有挑战性的任务，通常需要对基础技术有深入的了解，这通常构成了科学家采用它的普遍障碍。在此背景下，EOSC-Synergy 是一个合作项目，涉及来自 8 个欧洲国家的 20 多个机构，汇集他们的知识和经验以增强 EOSC 的能力和能力，旨在拉近 EOSC 与科学界的距离。本文提供了对 EOSC-Synergy 的十个主题服务中为接受这种范式所做的调整的总结分析。这些服务分为四类：地球观测、环境、生物医学和天体物理学。无论服务的主题领域如何，分析都将导致确定共性、最佳实践和共同要求。从主题服务中获得的经验可以转移到新服务中，以采用 EOSC 生态系统框架。文章针对 EOSC 生态系统中主题服务的集成提出了一些建议，涉及身份验证和授权（主要基于 EduGAIN 的联合区域或主题解决方案）、FAIR 数据和元数据保存解决方案（编目和数据保存方面——例如 EUDAT 的 B2SHARE） 、与云平台无关的资源管理服务（例如基础架构管理器）和工作负载管理解决方案。