Cédric Brun

Build open-source technologies to enable mission critical tools for complex domains.

Modeling

Here I explore the complexities and nuances of model-based software design. I share my experiences with tools like Ecore, Sirius Web, UML, Capella, aiming to demystify these concepts through practical insights.

2023

SVG icons in Sirius Web

One of the things I’m excited about: so many technologies on the web stack are focused on high-quality visuals, and Sirius Web can now leverage all of that g...

(Sirius + Papyrus) × Web: a new Era for Collaborative Engineering tools

I am excited to announce our collaboration with CEA-List towards a new era of open-source model-based solutions!

Do you know Ecore? Looking for a reference card?

“𝐸𝑣𝑒𝑟𝑦𝑡ℎ𝑖𝑛𝑔 𝑠ℎ𝑜𝑢𝑙𝑑 𝑏𝑒 𝑚𝑎𝑑𝑒 𝑎𝑠 𝑠𝑖𝑚𝑝𝑙𝑒 𝑎𝑠 𝑝𝑜𝑠𝑠𝑖𝑏𝑙𝑒, 𝑏𝑢𝑡 𝑛𝑜𝑡 𝑠𝑖𝑚𝑝𝑙𝑒𝑟” probably was one of the mantra the Eclipse Modeling Framework team (Ed Merks, Marcelo Pate...

What if you could design, simulate and analyze all at once using Open-Source solutions?

At the Eclipse Foundation conference last October, we had the opportunity to demonstrate an integration of Eclipse Sirius Web and Project Jupyter Notebook fo...

Building Graphical Modeling Tools, Approaches to Reducing Complexity

Building graphical modeling tools can be a complex undertaking, especially if they need to support many features and functions. At Obeo, we have extensive ex...

2019

The Rising Adoption of Capella

Witnessing an OSS technology getting together with a wide group of users is something I find exhilarating, I have experienced it with Acceleo, EMF Compare an...

2017

EcoreTools-Next: Executable DSL made (more) accessible

Hello there! I’m Cédric Brun, CTO at Obeo, and I’m excited to talk at the next EclipseCon France about making Executable Domain-Specific Languages (DSLs) mor...

2016

Graphical Modeling from 2016 to 2017: Better, Faster, Stronger

At Obeo, we believe that modeling is the right way to help IT and industry engineers collaborate efficiently on the design of their smart products. Our innov...

Ecore.ecore using EcoreTools

A few weeks ago I ended up on the following thread on the EMF Forum asking for Ecore meta-model formal documentation?. Ed pointed at some documentation which...

Metamodel (Ecore) Design Checklist

This is an index page for the Metamodel (Ecore) Design Checklist serie, a condensed version listing all the rules of the article (part1 and part2) for your c...

Metamodel (Ecore) Design Checklist - part 2

This article is the second part of a series focusing on metamodel design (more especially Ecore models). Following the first part focused on some ground rul...

Metamodel (Ecore) Design Checklist - part 1

Be meticulous with the model describing your domain! So many aspects of your tool will trickle down from your Ecore model that it pays a lot to pause for a b...

Executing, Debugging and Animating your model

As the Gemoc project is close to completion and as the question of animating the domain specific model with Sirius was asked to me quite frequently in the la...

Modeling Avengers : OSS Technology Mix for Saving the World

As Obeo’s CTO, I had the opportunity to present at EclipseCon 2016 about our intriguing project with INRA, focusing on agricultural water resource management...

Some news on the AQL front

The Acceleo Query Language implementation has been announced in August and is the recommended interpreter starting with Sirius 3.1. As we prepare the Eclips...

2015

AQL - a new interpreter for Sirius

TL;DR: we’ve been working on a new query interpreter for Sirius which is small, simple, fast, extensible and bring richer validation. It’s been released for ...

Sirius 3.0M6 - Anchors for Non-rectangular Images

Let’s say you need a specific shape for your modeler and this shape is directly available , you can create an SVG file (or a PNG one …) and use it as a shape...

2014

Sirius 2.0 : Under the Hood

This summer was quite intense for the Sirius team. Sirius 1.0.0 was barely out that development of the 2.0 stream started while report from adopters which ar...

EcoreTools 2.0 - The Luna Revival

With Eclipse Luna comes a complete re-implementation of EcoreTools, the diagram editor for Ecore. This is an important piece of news because EcoreTools is of...

2012

EMF Core does not change, but ..

Using EMF sometime lead to frustration : any relevant change into this core framework means breaking client code and this is a No No ! EMF Core does not cha...

Graphical, textual, table, trees, its your call, to us its just EMF models

Lately I've been making sure the upcoming Designer 6.0 release still plays well with Xtext. Results : fairly good. The newly introduced "Modeling Proj...

2011

Do you want to discard this editor's changes ?

If you've used EMF editors you probably already have seen this kind of dialog :This happens when you did change your model and some external changes (aka som...

SysML Comparison and Contributions

Community and EcosystemThe Juno release cycle has been very interesting for EMF Compare - as a project.Discussions started through the Modeling Platfor...

Model Transformation Preview

Let's say you have a model to model transformation, and you want to provide the ability, for the end-user, to see and control what is going to be applied on...

Model Comparison : Logical Model, UML, Papyrus, EcoreTools and GMF Integration

We just promoted an EMF Compare 1.3 integration build providing all the latests developments regarding EMF Compare, in a nutshell:- Logical Model suppo...

Textual Adventures in Ecore + Graphical Modeler

I was cleaning up my ${HOME} folder today and found a set of demos I prepared two years ago. I did this for a modeling course given at Polytech' . The cour...

Eclipse Modeling : the definitive tutorial

One of the thing we keep hearing from the adopters is : we need more doc, not just reference documentation but also how using and combining the Eclipse Model...

Live request interpreter for Acceleo 3.2

Laurent is working on an Interpreter View for Acceleo 3.2 (coming soon) It feels good already, one can launch queries on any Editor or View, syntax higl...

2010

Sequence Diagrams for your DSL's

We're working a lot on Obeo Designer 5.0 - release planned for Q1 2011 , on the traceability support and the next-gen model to text transformation language....

Model Comparison : Patching with MPatch

The following message is posted on this blog on behalf of Patrick Könemann Cédric already announced it two weeks ago: MPatch is integrated into EMF Compare!...

Forecasts Comparison For The World !

I have to admit I know nothing about soccer. Yes I'm a french guy, but I know nothing about soccer. That said I'm not against having a few beers in front of ...

Diff, Merge and Patch your Models with Helios

Ok, you're stuck at home, you are one of the numerous budget shortcuts victims ? You did not had the chance to come at EclipseCon ? Here is some kind of tran...

Ecore In Colors (In Motion)

Speaking about Ecore In Colors, If you're interested in here is a small flash demo showing the kind of interactions you can specify in a Viewpoint Specificat...

Ecore In Colors

I landed on a few articles about "UML in Colors" lately, I enjoyed reading those as modeling is used here as a design tool and support for efficient communic...

2009

Having more control ...

Who never asked for more time to focus on things that matters, like, for instance, gigantic barbecues ?And then you fulminate against this tool which should...

Eclipse Acceleo Day is going on...

Eclipse Acceleo Day started this morning. The event is collocated with the "Libre Software Meeting" at Nantes (France) . Yes, that's right ,we're part of thi...

Galileo Modeling Package is Here

If you're a friend you can download the Galileo packages. The modeling one is here !Please notice the great "What's New" page with live content :Yes, If you'...

Quick glimpse at Galileo Modeling Package

Eclipse Galileo aka 3.5 simultaneous release is coming soon. We now all have this fuzzy feeling when development stops and we stay here a bit dizzy, wonderin...

The 20 minute Graphical Modeler based on Eclipse

My last post about the flow model simulation was really missing a demo so that you get the "live" aspect of the model construction. No problem, that's a good...

Live Models Using JBoss Rules (Drools) and EMF

Modeling Kata here again ! Models are useful to describe things, systems, knowledge, basically any information you want to organize and formalize will gain i...