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Introducing OpenREL: Rights Expression Languages for Open Science and International Data Spaces – A Practitioners’ Approach

As Open Science accelerates, licensing models must evolve. Join us for a hands-on workshop to explore OpenREL, a new rights expression toolkit developed in Horizon Europe EOSC Beyond project. Learn how to represent complex access and reuse conditions in machine-readable form, from GDPR compliance to dual licensing and ethical constraints. Work through real-life cases with peers, shape the future of rights governance, and help build a FAIRer, trusted Open Science ecosystem.


90-minute hands-on workshop with short presentations, collaborative group work, and interactive exercises using OpenREL templates.
 
Target Audience:
Researchers, data stewards, legal and policy experts, research infrastructure providers, and software developers are involved in Open Science, FAIR data management, and international data sharing. The workshop is particularly relevant for those designing or implementing rights and access policies in research data platforms, services, and AI pipelines.
 
Purpose and Objective:
The workshop aims to introduce OpenREL as a practical solution for expressing complex rights in Open Science environments. It will demonstrate how to model permissions, obligations, and constraints in a machine-readable format, enabling compliance, transparency, and reuse across disciplines and infrastructures. Participants will gain hands-on experience with OpenREL templates and discuss real-world licensing scenarios. The objective is to foster a shared understanding of rights governance and gather feedback to refine OpenREL as a community-driven vocabulary and toolkit supporting FAIR and trusted data reuse.
 
Material and Resources:
Participants will receive a short handbook (“OpenREL Quick Start”), example policy templates in JSON and CSV formats, and access to collaborative tools (Google Sheets or Forms) for hands-on exercises. All materials will be openly shared after the session to support further use and adaptation.
 
Feedback and Evaluation:
At the end of the session, participants will be invited to complete a brief feedback form regarding the clarity and usefulness of the workshop, as well as to engage in a fruitful discussion. The input collected will help us improve the OpenREL materials and further adapt them to community needs.
This 90-minute hands-on workshop will begin with an introduction to OpenREL’s structure and logic, followed by collaborative group work. Participants will engage with real-world scenarios involving datasets, services, and research software. In small teams, they will use simplified OpenREL templates to address key questions: What are the conditions for reuse? How can ownership be traced? Who holds which rights and responsibilities? How can these be represented in a machine-readable way?
The session aims to open community dialogue on rights governance in Open Science and collect feedback to shape this vocabulary and toolkit.

Details

  • DATE:
    16 September 2025
  • ROOM:
    82/1-001 Science Gateway Lab A

Organisers


Speakers

Melios Katsamakis

OpenAIRE

Prodromos Tsiavos

OpenAIRE

Wim Hugo

DANS

Short Bios

Melios Katsamakis

Melios Katsamakis is a Project & Development Manager with a strong background in software engineering, AI, and digital rights technologies. He has worked extensively with Rights Expression Languages such as ODRL and ccREL, contributing to the development of OpenREL within the EOSC ecosystem. His experience includes building large-scale platforms with structured data (XML), automation, and machine learning. Passionate about bridging technical and non-technical domains, he focuses on FAIR data, trustworthy reuse, and practical rights modelling for Open Science infrastructures.

Prodromos Tsiavos

Wim Hugo

Wim Hugo is the Chief Technology Officer of DANS, an institute of KNAW (Royal Dutch Academy of Sciences) that focuses on provision of state-of-the art digital repository services and of expert knowledge in the field. In this role, he is responsible for the maintenance and evolution of DANS information technology services. Wim currently participates in several Horizon-Europe funded projects, including FAIRCORE4EOSC, FAIR-IMPACT, RDA TIGER, OSTrails , EOSC Beyond, EOSC EDEN, EOSC FIDELIS, and EOSC Data Commons. Specialisations: Research Data Infrastructure Architecture, Open Science policy and implementation, and policy and decision support systems based on open data, and compliance assessment.

    Agenda

    15’ Introduction: Rights in Open Science and the role of RELs
     
    15’ Group Use Case: Identifying rights and constraints in real-world scenarios
     
    30’ Hands-on Session: Modelling policies using OpenREL templates
     
    15’ Group Feedback and Discussion
     
    15’ Takeaways, Next Steps, and Community Input
     
    Organisers and Speakers:
     
    Melios Katsamakis, OpenAIRE technical contributor – Rights modelling and Open Science infrastructures
     
    Prodromos Tsiavos, Legal and Policy Advisor, ATHENA Research Center / OpenAIRE
    Wim Hugo, Chief Technology Officer | DANS