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Modeling platforms
Building reusable foundations for domain-specific and systems engineering tools, from Eclipse technologies to collaborative web platforms such as Sirius Web.
How modeling platforms workCédric Brun · CEO at Obeo
Building open-source technologies for complex engineering.
I work at the intersection of modeling, software platforms, open-source ecosystems, and the practices that make them useful in real organizations.
- CEO at Obeo
- Twenty years in modeling
- Eclipse contributor
- Sirius, SysON, and Capella ecosystem
Turning languages into practices
I joined Obeo as an intern in 2006, after discovering modeling and model-driven engineering through university courses in Nantes. What began as a technical interest in metamodels, generators, and graphical editors became a much broader question: how do we make formal languages genuinely useful to the people and organizations that depend on them?
Today, as CEO of Obeo, I help shape the technologies, products, partnerships, and open-source ecosystems behind that question. My perspective remains grounded in building software: understanding the abstractions, testing them against real engineering work, and learning where technology alone is not enough.
A language is not finished when it is defined. It becomes valuable when people can practice it, evolve it, and trust the ecosystem around it.
What I work on
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MBSE in practice
Connecting standards, methods, tools, and organizational change through SysML v2, Eclipse SysON, Capella, and Arcadia.
Explore the MBSE topics03
Industrial open source
Making governance, funding, maintenance, support, and shared innovation part of the engineering strategy—not an afterthought.
A framework for durable open sourceA path through modeling
2006
Starting with languages and generators
I had already started contributing to open-source projects including KDE and the Linux kernel when I joined Obeo at the beginning of its story. Work around Acceleo, code generation, and model-driven engineering showed me how open technology could give a small team reach, credibility, and a durable relationship with its users.
Eclipse
From individual tools to shared platforms
My work expanded across projects including EMF Compare, EcoreTools, and Eclipse Sirius. The recurring lesson was that a useful tool needs more than a good technical core: it needs a community, governance, documentation, and room for others to build on it.
Today
Building the next generation openly
My current focus includes the transition to web-based modeling, the emergence of SysML v2, Eclipse SysON, and the continued evolution of the Capella and Arcadia ecosystem. The goal is not simply to ship more tools, but to create foundations that organizations can understand, influence, and sustain.
Explore the work
Continue the conversation
Let’s talk modeling, open source, or engineering.
For a speaking opportunity, an open-source collaboration, or a modeling initiative, contact me directly or explore the work we do at Obeo.