The document discusses the EUDAT CDI (Collaborative Data Infrastructure), which provides common data services for research communities. It was established in 2016 through a partnership agreement between 22 organizations committed to sustaining the infrastructure for 10 years. The CDI architecture involves community repositories feeding into EUDAT's generic data services for storage, processing, and archiving. Key ongoing projects that leverage and contribute to the CDI include EOSCpilot, EOSC-Hub, and SeaDataCloud.

1. www.eudat.eu
EUDAT receives funding from the European Union's Horizon 2020 programme - DG CONNECT e-Infrastructures. Contract No. 654065
EUDAT
CDI Architecture
Mark van de Sanden
EUDAT CDI Technical Coordinator

2. History of the EUDAT CDI
Common Services for heterogeneous communities
Science data rates are exploding and will likely
become continue to do so
Building bespoke services for new communities is
not cost effective
Initial Set of Services developed as result of
community needs
Beyond the original ‘core’ communities
New services and specific community issues
highlighted

3. If there are hundreds of Research
Infrastructures, how many different data
management systems can be sustained?
3www.eudat.eu

4. EUDAT CDI
EUDAT CDI is partner agreement
Signed September 2016
Total of 22 partners
Commitment to sustain the EUDAT CDI pan-
European Infrastructure for 10 years
Partnership for Generic and Thematic service
providers (level 1 and 2)
Membership fee to become CDI partner
No direct funding for service development
Plan and organise participating in EC and
community projects

5. Community Repositories
(thematic data centres)
EUDAT generic data
service provider
storage, workflows,
processing, archive
Collaborative Data Infrastructure (CDI)
5

6. CDI Architecture
6

7. Service Diagram

8. Evolution of the CDI

9. User subscribes to a data set, e.g. through the use
of queries
When a match for a query is found, the user is
notified
A notification includes information (a link) to access
the data set found through the query
Expiration of the subscription?
Persistent: user removes out-dated subscription?
Time-limited: automatic expiration and expiry
notification?
Notification intervals
EuroArgo Data Subscription Service

10. EuroArgo Use Case

11. Common Data Index

12. • Import area
distributed across
the five EUDAT
partners
• Production area
replicated across
the five EUDAT
partners
EUDAT Cloud

13. Beyond EUDAT2020
EUDAT
10-2011 3-2015 9-2016
1-2017 1-2019
EOSC-hub
1-2018
3-2018
EOSCpilot
1-2021
EUDAT2020
EUDAT CDI PA
EOSC ?
SeaDataCloud
1-2016 1-2020
Future H2020 calls?

14. Key ongoing projects
14
EOSCpilot – the “Design Study” of EOSC
Main areas of involvement in the project: up
EOSC vision: EOSC Governance, Science
Demonstrators, Rules of Engagement & Service
Management.
EOSC-Hub – the “engine” of EOSC
Main areas: Project Direction, Governance &
Strategy, Service Integration, etc.)
Key service areas: data management, metadata,
sensitive data, long term preservation
Joint integration activities with several
communities: LOFAR, EISCAT, EURO-ARGO,
CLARIN, ENES, etc.
SeaDataCloud – an example of a “thematic cloud”
Main objective: Leverage EUDAT services &
capability to upgrade SeaDataNet Infrastructur
Specific objectives: improve data access
(INSPIRE), data quality and accounting

15. https://eudat.eu/
mark.vandesanden@surfsara.nl