Cédric Brun

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

Ecore & EMF

Ecore and EMF are the bedrock of many of our tools, so this hub collects the evergreen pieces: the Ecore reference card, design checklists, and articles on validation, queries (AQL), compare/merge, and diagram editors. If you create or evolve meta-models, you’ll find concise rules of thumb, annotated examples, and pointers to EMF/Sirius best practices that save time—and bugs.

2023

Do you know Ecore? Looking for a reference card?

A one‑page Ecore reference card—handy for EMF users and educators—explaining why the core model concepts still matter and how to use them today.

2016

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...

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 ...

2014

EcoreTools 2.0 - The Luna Revival

With Eclipse Luna comes a complete re-implementation of EcoreTools, the diagram editor for Ecore. This matters because EcoreTools is often the first step our...

2013

Eclipse Modeling Package - The Road to Luna

Since the last public survey, my primary focus for the modeling package was:

Introducing Eclipse Sirius

You might have noticed some signs of excitement from us lately, one being the following tweet:

2012

EMF Core does not change, but ..

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 Project” let...

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:

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 th...

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.

Compare/Helios - Every Second Counts

I tend to break a lot of keyboards. Not because I release all the aggression that I hold deep within me on them, but because I drool testing the product Obeo...

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 have the chance to come at EclipseCon? Here is some kind of trans...

Ecore In Colors (In Motion)

Speaking about Ecore In Colors, if you’re interested, here is a small Flash demo showing the kind of interactions you can specify in a Viewpoint Specificatio...

2009

The 09/09/09 09:09 0.9.0 Release

Laurent did it not even on purpose, but the latest Acceleo I-build, which is the 0.9 branch, performed well and has this golden qualifier:

Feedback from IT companies leveraging Acceleo

The first Eclipse Acceleo Day took place last week and was a pretty nice event — no doubt we’ll organize others like that :)

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...

Viewpoints-enabled Modeling Tools

This post follows those showing how it’s possible to leverage EMF and JBoss Drools to get an interactive model updated considering business rules, and how yo...

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 b...