Recently I had the pleasure to participate in the Open Community Experience (OCX) 2026 in Brussels with Mélanie Bats and Stéphane Bégaudeau.
It is always a pleasure to reconnect with the Eclipse Foundation community, where Obeo really grew. If I’m not mistaken, I have attended every EclipseCon and OCX since 2007. What a journey!
Once again, OCX brought together the Eclipse community for a few days of discussions, insights, and shared perspectives on open source technologies. As the continuation of EclipseCon, the event remains a key meeting point for software providers, integrators, and end users working on model-based and web-based tooling.
As a Strategic Member of the Eclipse Foundation, Obeo has been involved in this ecosystem since its inception in 2006 and continues to support the event as a sponsor.
At our booth, we showcased Sirius Web, Capella, and SysON, and had many insightful discussions with attendees on the transition toward fully web-based engineering platforms, with a focus on web-based MBSE and the support of SysML v2.
A shared booth with CEA List
This year, we had the pleasure and the honor of welcoming CEA-List at our booth, highlighting a strong and ongoing collaboration.
Together, we are advancing key initiatives around web-based modeling environments, including Papyrus Web, as well as technologies such as Sirius Web and SysON. These collaborations reflect a shared vision: making modeling tools more accessible, collaborative, and aligned with modern web standards.
6 talks showcasing our expertise
We were proud to have no less than five talks selected this year! Each of them reflects our commitment to open source, model-based engineering, and next-generation tooling. In addition, CEA-List also gave a talk presenting work carried out jointly with us on AI and modeling tools, as part of a shared R&D lab.
Sirius Web: What’s Up, Doc?
In this talk, Mélanie and Stéphane presented the current status of Sirius Web. The latest updates bring smoother diagram editing, faster rendering, richer customization, better scalability, and new APIs for extension and integration. They also introduced upcoming capabilities such as collaborative modeling and broader ecosystem integration.
Watch the replay:
Diagrams on the Web, OSS all the way: SysON & SysMLv2
In this talk, I presented SysON, an open source, next-generation environment for SysML v2, built on Sirius Web. It enables system architects to design, analyze, and collaborate directly in the browser, with the goal of making modeling as fluid as possible within an open ecosystem.
I also took the opportunity to perform a live demo of one of our newest enterprise features: AI integration within the SysON MBSE tool. Starting from an empty model, I opened the AI chat and asked it to create the architecture of a double-decker London bus. It is always a bit risky to do this live, as you cannot fully predict what the LLM will generate, but the result was convincing, both in terms of component breakdown and functional allocation. Throughout the process, I remained in control, validating each step of the AI’s output.
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Mission: CRA-possible
In this session, Mélanie shared our practical journey toward EU Cyber Resilience Act (CRA) compliance: where we stand today, what we have already implemented, what is in progress, and what comes next to reach full CRA readiness across both our open source and proprietary products.
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Capella & SysON: The MBSE Force Awakens
This talk was part of the Automotive track, where I explained how Capella is now used in the Eclipse SDV (Software Defined Vehicle) Blueprint to design an Automotive system, with a focus on Architecture. I also presented the perspectives offered by SysON the new Eclipse Foundation project to design SysMLv2 models in the automotive domain.
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Modelator 2: Judgment Day for Manual Modeling
In this session, Stéphane demonstrated natural language interfaces integrated into modeling tools such as Capella and SysON. These enable users to generate system architectures from textual sources, refine existing models through dialogue, and explain model elements and design decisions directly within the environment.
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AI assisted modeling with Papyrus or SysOn
In this session, Ansgar Radermacher and Julie Bonnail from CEA-List presented an AI-assisted approach to model-driven engineering, focused on integrating AI agents into modeling tools such as Papyrus Web and SysON.
Watch the replay:
See you next year!
OCX 2026 confirmed once again the strength and relevance of the Eclipse ecosystem. From open collaboration to concrete industrial use cases, the event highlighted how open source continues to shape the future of software and systems engineering.
We are already looking forward to the next edition, and to continuing these conversations with the community!
