The document outlines the European Open Science Cloud (EOSC) as a federated environment aimed at enhancing collaborative scientific practices through shared data and tools. It emphasizes an iterative implementation process, support for open science infrastructure, and the need for diverse service providers to ensure effective management and technical solutions. Additionally, it highlights the importance of governance, policies, and a coordinated approach to meet the requirements of various users in the scientific community.

1. EOSC Architecture:
a System of Systems
Donatella Castelli
CNR-ISTI

2. Open Science: a systematic change in the
modus operandi of science and research
• Shifting from the standard practices of
publishing research results in scientific
publications towards sharing and using all
available knowledge at an earlier stage in the
research process.”
• A new approach to the scientific process based
on cooperative work
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By using digital technologies and new
collaborative tools

3. Suggestions from experts
• It should be a “federated, globally accessible environment where researchers,
innovators, companies and citizens can publish, find and re-use each other's data and tools
for research, innovation and educational purposes”
• It should “build on existing capacity and expertise where possible”
• It is approached as a “federated environment for scientific data sharing and re-use, based
on existing and emerging elements in the Member States, with lightweight international
guidance and governance and a large degree of freedom regarding practical
implementation”
• “It should enable trusted access to services, systems and the re-use of shared scientific
data across disciplinary, social and geographical borders”
www.eoscpilot.eu
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
3
Basic “principles” for the implementation
of the EOSC system architecture

4. Step-wide and iterative process
www.eoscpilot.eu
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
4
What is made available
by existing providers
What facilities are
needed to support
Open Science
What is
missing

5. As-a-Service
as-a-Service provision model, i.e. all the services in the
EOSC system are managed and delivered by a known service
provider
The technical and organisational solutions needed for
operating the service to completely up to the service
provider
www.eoscpilot.eu
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
5

6. www.eoscpilot.eu
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
6
Operational and
managerial
independence
Each system is
independent and it
achieves its purposes by
itself and for its own
objective rather than for
the purposes of the SoS
Geographical distribution
A SoS is distributed over a large
geographic extent
Added-Value
A SoS has capabilities and
properties that do not
reside in the component
systems
Evolutionary
development
A SoS evolves with
time and experience
Heterogeneity of
constituent systems
A SoS consists of multiple,
heterogeneous, operating
systems embedded in
networks at multiple levels
Service providerService provider
E- Infrastructure
E- Infrastructure
Research
Infrastructure
Research
InfrastructureResearch
Infrastructure
Service provider
E- Infrastructure
EOSC as a System-of-System
EOSC

7. EOSC as a System-of-Systems (cont.)
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
7
Suppliers
(Systems)
EOSC System Customers
Research
Infrastructure
Research
Infrastructure
Research
Infrastructure
e-Infrastructuree-Infrastructuree-Infrastructure
Service SupplierService SupplierService Supplier
Service Provider
Service Provider
EOSC Service Provider
Research Infrastructure
e-Infrastructure
Ext. Service Provider
EOSC Services
EOSC Service Components
(including Data Services)

8. EOSC Services:
Added Value & Federative Typologies
8
The European Open Science Cloud for Research pilot project is funded by the European
Commission, DG Research & Innovation under contract no. 739563
EOSC Service Responsibility Seamless discovery
and access
Redirect requests to the
most suitable component
Fully integrate service
components
Invisible
coordinator MatchMaker OneStopShop
.... ….
EOSC Service
Component
EOSC
Service
EOSC Service
EOSC Service
Component
EOSC Service
Component
EOSC Service
Component
EOSC
Service
EOSC Service
Component
EOSC Service
Component
Mediators
EOSC Service
Component

9. Who is EOSC system for
www.eoscpilot.eu
The European Open Science Cloud for Research pilot project is funded by the European
Commission, DG Research & Innovation under contract no. 739563
9
Client /
Customer
Scientist
Research
Admin
Ext. Service
Provider
Supplier
EOSC Service
Component
Supplier
EOSC Serv.
Comp.
Developer
EOSC Service
Developer
Manager
EOSC
“Owner”
EOSC Top
Manager
EOSC Service
Manager
 An actor may play many roles
 Roles can be further specialised:
e.g. Scientist include Data Scientist and Citizen Scientist
 Each service may have its own ”manager”, e.g. data librarians curate the
content of data repositories

10. EOSC Services
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
10
Web-based APIs Gateway / Web Portal
CoreServices(incl.EOSCAAI)
EOSCServiceCatalogue
EOSC User-facing Services
Services for
Scientists
Services for Research
Admins
Services for Ext.
Service Providers
Services Component
Supplier
Services for EOSC
Serv. Comp.Develop.
Services for EOSC
Developer
Services for EOSC
“Owner”
Services Top
Manager
Services for EOSC
Service Manager

11. EOSC System: service classes
www.eoscpilot.eu
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
11
Scientist
PID Minting Alert Service Recommender Service
Search &
Browse
Data
Repository
Policy and
Licence Helper
Semantic
Integration Helper
Citation, Attribution and Reward
Workflow Mgmt
VRE Factory Shared
Workspace
Social Networking
IDE
as_a_service
Software
Repository
Validation
Environment
Assessment
Environment
Operational
Service Mgmt
Operations
bridge
IT Security
Service
continuity
Data
Catalogue
Service
Catalogue
Service Desk
Servicesfor…
Environment
operations
Environment
continuity
VRE Factory
Research Administrator
Statistical
generator
Trends
visualizator
Report
generator
Activity
monitoring
Operational
Service Mgmt
Operations
bridge
IT Security
Service
continuity
Data
Catalogue
Service
Catalogue
Service Desk
Environment
continuity
VRE Factory
Policy Toolkit
(Open) Science Monitor
Open Science
Policy Registry
ServicesforEOSCServiceManager
Context Linking
Analytics
Framework

12. EOSC System: service classes(cont.)
www.eoscpilot.eu
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
12
Manager (EOSC “Owner,” Top Manager)
IT Security
Service
continuity
Service
Catalogue
Resource
Catalogue
Service Desk
Service Desk
Portfolio Management
External service provider
EOSC Development Platform
(including API)
EOSC Hosting Platform
IT Security Operations
bridge
Service
transition
Service
Catalogue
Service Desk
Resource
Catalogue
Environment
operations
VRE Factory
Servicesfor…
ServicesforEOSCServiceManagers
Multiprovider-coordination EOSC Service Monitoring
PoE Mgmt
EOSC Managers Coordination Platform
Supplier
EOSC Development Platform
(including API)
EOSC Hosting Platform
EOSC Service Component
Promotion
Multi-supplier
coordination
Underpinning
Agreement Mgmt
Metadata
Alignment
Policies Consistency
AlignmentPoE Validator
Service
DashboardValidation
Environment
Service
Catalogue
Resource
Catalogue
Policies
Consistency
Checking
Operational
Service Mgmt
IT Security
Service
continuity
Environment
continuity
VRE Factory
SLA Monitor

13. From the Ref. Model to the Ref. Architecture
www.eoscpilot.eu
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
13
 Cross-disciplinary support
 Federation role (Invisible, MatchMaker, Broker, Integrator, …)
 Governance and Policies mgmt support
 Interaction with Science Demonstrators & RIs
•Are there missing classes of servicies?
•What are the services that might be supplied to EOSC?
Scientist
PID Minting Alert Service Recommender Service
Search &
Browse
Data Repository
Policy and Licence
Helper
Semantic Integration
Helper
Citation, Attribution and Reward
Workflow Mgmt
VRE Factory Shared
Workspace
Social Networking
IDE as_a_service
Software
Repository
Validation
Environment
Assessment
Environment
Operational Service
Mgmt
Operations bridge
IT Security
Service continuity
Data Catalogue
Service
Catalogue
Service Desk
Servicesfor…
Environment
operations
Environment
continuity
VRE Factory
Research Administrator
Statistical
generator
Trends
visualizator
Report
generator
Activity
monitoring
Operational Service
Mgmt
Operations bridge
IT Security
Service continuity
Data Catalogue
Service
Catalogue
Service Desk
Environment
continuity
VRE Factory
Policy Toolkit
(Open) Science Monitor
Open Science Policy
Registry
ServicesforEOSCService
Manager
Context Linking
Analytics Framework

14. Engagement
Principles
Final consideration:
Architecture as an EOSC central point of reference
www.eoscpilot.eu
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
14
required
tools
required
skills
required
tools
manager
roles
Glossary
Policies GovernanceArchitecture
Education

15. Thank you
www.eoscpilot.eu
The European Open Science Cloud for Research pilot project is funded by the
European Commission, DG Research & Innovation under contract no. 739563
15