SysON 2025.10 is here, and it feels like a breath of fresh air. Fully aligned with the SysML v2 2025-07 release , it brings a wave of thoughtful improvements that make modeling smoother, clearer, and simply more pleasant. Open your project, try the new touches, and enjoy.   Modeling that keeps evolving Better Control of your views A smoother modeling experience Textual import and libraries Integra...

Open Source MBSE at Scale: From Industry-Proven Tools to Web-Native SysML v2 Cedric Brun, CEO of Obeo, and Asma Charfi, from CEA, look back on 15 years of open-source ecosystem development and share their vision for the next generation of Model-Based Systems Engineering (MBSE) tools. Context Summary This joint presentation explored how open-source MBSE technologies have evolved over the past 15 ye...

The European Space Agency (ESA) is undergoing a progressive transition from traditional paper-based engineering processes to a unified, fully digital platform based on the Model Based Systems Engineering (MBSE) principles. As part of this transformation, I am currently leading the IDEF project to develop an Integrated, web-based Digital Engineering Framework, with the SysON tool at its core. This ...

SysML v2 is reshaping the way systems engineers approach modeling, offering a modernized syntax and semantics designed to improve precision, tool interoperability, and developer experience. Yet, as with SysML v1, the standard itself remains intentionally neutral: it defines a notation, not a methodology. For teams working on the architecture of complex systems, whether in aerospace, transportation...

We’re pleased to announce the 2025.6   release of Eclipse SysON , packed with new features that improve how engineers structure, visualize, and manage their models. This version introduces key enhancements to modular views, diagram interaction, textual syntax, and platform performance, alongside numerous stability improvements. Here’s what’s new in this release: Modular Views with ViewUsage Better...

As web technologies advance and model-based engineering (MBE) gains momentum, the need for lightweight, web-based graphical modeling tools has never been greater. The Eclipse Sirius project addresses this challenge with Sirius Web , a modern, low-code framework for building domain-specific modeling tools directly in the browser. A standout example of what’s possible with Sirius Web is SysON , a gr...

The SysON 2025.4.0 release brings major improvements: user library management, enhanced graphical capabilities with support for new object types, better textual import and export and many other updates - all while staying aligned with SysMLv2 Beta 2.4. Libraries Management: Reuse Made Simple Many UX Improvements Better Textual Import Improved Export to Text   Libraries Management: Reuse Made Simpl...