Smoother Experience and Stronger Administration   Publication for Capella 2026.5 has been released! This new version offers enhanced navigation and smarter project organization to advanced version control foundations. Whether you are a model designer, project contributor, or server administrator, these enhancements provide a more intuitive and efficient experience across the entire tool.   Learn more....

Cedric Brun, Obeo's CEO, is invited to open the 19th edition of the International Conference on Software Language Engineering (SLE) as a keynote speaker, on July 2nd, in Rennes, France. This conference brings together researchers from different areas united by their common interest in the creation, capture, and tooling of software languages. In his keynote, Cédric will reflect on two decades of building and deploying modeling languages in the real world. The conclusion is simple. The problem was never language itself. It was everything around it: user experience, integration into workflows, and the ability for teams to share and evolve a language over time. The shift to web-based platforms such as Sirius Web and SysON changes the game. Not just new technology. A new constraint. Languages must be collaborative. Accessible. Alive. No longer reserved for experts. The future of modeling is not less language. It is more language: better tooled, more collaborative, and clo...

SysON 2026.5 streamlines your modeling workflow with advanced multi-selection capabilities and batch actions, making element creation faster and more intuitive: Multi-selection actions Intuitive/Smart creation dialog Enhanced experience and new content Get the full overview in our blog post....

We are pleased to announce that Obeo is sponsoring the upcoming INCOSE International Symposium 2026, taking place from June 13-18 in Yokohama, Japan. The INCOSE International Symposium is the premier international forum where practitioners, researchers, and educators share their insights, experiences, and innovations, furthering the practice of systems engineering. The symposium has occurred every year since 1991 and is the largest annual gathering of the systems engineering community. During this event, we look forward to welcoming you at our booth to discuss the latest advancements in Capella and SysON. In addition, Romain Horcada will give a presentation on SysON: Tuesday June 16, at 5:00 PM (Room 317 - 3rd Floor) SysON, an Open-Source SysML v2 Tool for Driving Adoption, Collaboration, and Scalability SysON is an open-source MBSE solution designed for graphical modeling with SysML v2. Built as a modern web-based application, SysON simplifies access to modeling a...

AFIS - Association Française d'Ingénierie Système is organizing a thematic day on SysML V2: "How the new language will address Systems Engineering and Digital Thread challenges".Join us for a presentation by Etienne Juliot: “SysML v2 for Digital Thread: The SysON Approach” Thursday, May 28th, 2026 9:40 a.m. – 10:20 a.m. CEST INSA Bourges / Amphithéâtre SAPPHIRA Register here    ...

The Incose WMA (Washington Metro Area) Chapter is organizing a MBSE Tools Info Session featuring SysON.Join us for a comprehensive 2-hour presentation by Stéphane Lacrampe: Wednesday, May 20, 2026 From 6:00 pm to 8:00 pm EST Via ZOOM Register here    ...

MBSE Vision 360: A Layered and Semantic Approach to Navigating Complex Models Watch the replay of this Capella Webinar held on June 11, 2026       In many industrial projects, the full potential of MBSE remains underexploited: models are rich, but often too complex to be accessible to all project stakeholders. In this webinar, discover MBSE Vision 360, a solution developed by LGM to address this challenge. This Capella add-on is designed to democratize access to and understanding of MBSE models: make models accessible to non-specialists through simple, direct interfaces to key information (KPIs, links, interfaces) for project managers, equipment managers, suppliers, and domain experts, improve model quality with advanced capabilities for semantic review, consistency analysis, and traceability. This approach enables: better circulation of technical information, improved requirements coverage, faster decision-making, and an overall increase in MBSE mat...

Webinar in Mandarin: Practice in COMAC to Conduct MBSA in Avionics System Based on Capella   Watch the replay of this Capella Webinar held on May 12, 2026.     This webinar explores how COMAC, a leading civil aircraft manufacturer, extends Capella to support MBSA activities in compliance with ARP4761. Key topics include defining failure conditions within models, modeling failure propagation, automatically generating fault trees, and leveraging minimum cut set results to perform advanced safety analyses.  ***  Presented by: Hu PoCOMAC Hu Po serves as the Safety Engineer at COMAC, where he has been extensively involved in the safety assessment processes for the C919 and C929 aircrafts. He has also led the IMA cascading effect analysis for the C929. He is committed to advancing the development and implementation of MBSA within China's civil aviation industry.     Renfei XuPGM Renfei Xu is the Technical Director of MBSE from PGM. He...

Obeo is honored to sponsor the upcoming SETE Conference, the Systems Engineering Test and Evaluation conference organized by the SESA and the INCOSE Australian Chapter in Sydney, from April 27th to 30th, 2026. During this event, Romain Horcada from Obeo will co-present a tutorial with Tim Carter from Clarity SE, a professional engineer with over 25 years of experience in complex systems engineering, specializing in Arcadia and Capella, and experienced in deploying MBSE in organizations of all sizes. In this session, you will explore the fundamentals of the Arcadia Model-Based Systems Engineering (MBSE) method, a structured approach to defining, designing, and analyzing complex systems. Arcadia helps engineers systematically capture requirements, define operational and system architectures, and ensure alignment between stakeholder needs and system design. You will also gain hands-on experience with Capella, an open-source MBSE tool used by over 1,000 organizations...

Capella in Transport and Infrastructure Projects    Watch the replay of this Capella Webinar held on April 21, 2026.       Capella brings strong value to transport and infrastructure projects through the ARCADIA framework, enabling clear system modelling with Physical Architecture Nodes, Behavioural Components, and Functional Chains. Its REC/RPL paradigm allows efficient scaling of models with repeated elements, while exchanges naturally reflect logical and physical interfaces. Combined with document generation capabilities, Capella supports consistent and scalable production of interface documentation and project artefacts. ***  Presented by: Tim CarterClarity SE Tim Carter is a professional engineer with 25+ years of experience with complex systems engineering. Tim is a Principal Systems Engineer and experienced engineering leader at the corporate, business unit, programme, and project levels. Tim's systems engineering experience covers the ...

In this new release of SysON, we’ve focused on improving both the robustness and usability of the modeling experience. Discover the latest updates across the interface, graphical capabilities, import/export features, as well as the extended support for SysML v2 concepts Bug Fixes and Stability Improvements Graphical Improvements Textual Import/Export Enhancements Model and Project Management Improvements SysON is extensible by nature Get the full overview in our blog post....

This new version of Sirius Web improves the moments that shape everyday modeling work: finding the right view, triggering the right tool quickly, keeping diagrams readable, and giving specifiers more control over the experience they deliver. The result is a 2026.3 release that feels faster, cleaner, and more adaptable, for both end users and teams building modeling applications on top of Sirius Web. A New Views Panel Keyboard Shortcuts for Faster Actions Diagrams That Stay Readable More Flexible Selection Dialogs An Improved Diagram Editing Experience A Stronger View DSL Get the full overview in our blog post....

On April 13, at 11:00 AM EDT (5:00 PM CEST), Alex Fournié, MBSE Product Owner at Obeo, will present a webinar organized by INCOSE as part of its "SE Lab Demo Day" series.  Title: Scaling collaborative MBSE projects without complex setup, with Cloud for Capella Abstract: Deploying and maintaining collaborative MBSE environments can be complex and time-consuming, often slowing down project initiation and limiting effective collaboration across teams. This webinar introduces Cloud for Capella, a solution designed by Obeo to address these challenges. Cloud for Capella is a Software as a Service (SaaS) solution that provides a secure, pre-configured, and ready-to-use MBSE environment, accessible without any local installation. It enables immediate collaboration on the design and architecture of complex systems, helping teams streamline their engineering processes from day one. With an environment already installed and configured by Obeo, authorized users can start working dir...

Obeo is honored to sponsor the upcoming MBSE Summit 2026, organized by the INCOSE Indian Chapter in Chennai, the 24th and 25th of April. This year the event topic will be "Engineering the Future: Mobility & Next-Generation Industries". During this event, Ashutosh Sonawane, from Obeo, will deliver a talk titled "Open-Source MBSE in Action: Driving Adoption, Collaboration, and Scalability in Systems Engineering". To maintain a global and coherent vision of complex systems, Model-Based Systems Engineering (MBSE) offers a powerful alternative to traditional document-based approaches. By relying on formal digital models to specify, design, analyze, and verify systems, MBSE enables more effective decision-making, improves collaboration across stakeholders, enhances understanding of system complexity, and facilitates tool integration. In this talk, Ashutosh will present Obeo's open-source strategy to support and accelerate the adoption of MBSE at scale. He wi...

We will be at the upcoming 2026 Latin American CubeSat Workshop (LACW), the main forum in Latin America for discussing scientific and technological advances in the CubeSat and small satellite field. During this event, Martin Le Bourgeois will deliver a Capella tutorial, showing how to leverage this field-proven system modeling tool. March 17, 2026 9:00 AM - 10:00 AM BRT Santa Catarina, BRAZIL Learn more: https://cubesat.ufsc.br/2026/  ...

Obeo SmartEA 9.1 is available. Dicover the main changes: Addition of the Lifecycle functional module. This module includes a connector to endoflife.date, allowing lifecycle information to be retrieved for more than 400 software products, including programming languages, frameworks, databases, operating systems, and more. Support for semantic undo (Ctrl+Z), allowing users to step back through the latest semantic changes made to the model from a Web Diagram, the Model Explorer, or the Properties View.       To learn more: Focus on the endoflife.date integration (in french) Changelog...

Obeo will participate in OCX 2026, which will take place from April 21 to 23, 2026 in Brussels (Belgium). We will be present as a sponsor and will have a booth to meet participants and discuss our open source projects and modeling solutions. Our teams will also give several presentations, focusing in particular on Sirius Web, SysON, Capella, SysML v2, as well as on topics related to the Cyber Resilience Act and the use of AI in modeling environments. Don't miss our sessions : April 21 – 2:45–3:30 PM CETSirius Web: What’s Up, Doc?Stéphane Bégaudeau and Mélanie Bats April 23 – 11:00–11:45 AM CETDiagrams on the Web, OSS all the way: SysON & SysMLv2Étienne Juliot and Mélanie Bats April 23 – 1:30–1:45 PM CETMission: CRA-possibleMélanie Bats April 23 – 1:30–1:45 PM CETCapella & SysON: The MBSE Force AwakensÉtienne Juliot April 23 – 2:00–2:15 PM CETModelator 2: Judgment Day for Manual ModelingStéphane Bégaudeau These presentations will highlig...

Obeo will be present at the OMG Q1 2026 Technical Meeting, taking place March 23 to 27, 2026, in Reston, Virginia, USA. A key event for the modeling and systems engineering community, bringing together experts to advance standards and shape the future of modeling technologies. Stéphane Lacrampe will be there. If you are attending, feel free to connect with him and discuss MBSE and open source approaches. For further informations  ...

How-to Model a Logical Architecture with Capella Watch the replay of this webinar held on March 23, 2026.     While it is easy to conceptualise the final synthesised physical architecture and the black-box system analysis, logical architectures, by their nature, are abstract and more open to interpretation. In this presentation, Tim Carter will explore a number of different interpretations of the ARCADIA logical architecture and in which scenarios they may be useful in achieving modelling goals and adding value. ***  Presented by: Tim CarterClarity SE Tim Carter is a professional engineer with 25+ years of experience with complex systems engineering. Tim is a Principal Systems Engineer and experienced engineering leader at the corporate, business unit, programme, and project levels. Tim's systems engineering experience covers the breadth of defence, transport, and infrastructure projects. Tim is experienced in rolling out MBSE approaches to engineering organ...

Sirius Web: What’s Up, Doc? Watch the replay of this webinar held on March 19, 2026.   If you’ve been wondering what’s up in the world of web-based modeling, Sirius Web is here for you. It’s an open-source platform that lets you build and use custom modeling tools directly in the browser, bringing the power of domain-specific modeling to modern, collaborative environments.Sirius Web has been growing fast, almost as fast as a family of rabbits, with new features and improvements multiplying every release. The latest updates bring smoother diagram editing, faster rendering, richer customization, better scalability, and new APIs for extending and integrating Sirius Web.We’ll also take a look ahead at upcoming capabilities like collaborative modeling and broader ecosystem integration. Join us for a fun and insightful tour of what’s new, and don’t come alone! After all, things grow faster when the bunnies team up. That’s all folks! ***  Presented by: Mélanie BatsObeo Mé...