Capella™ : Open source solution for model-based systems engineering

Capella™ is hosted by Polarsys™, a Working Group created by large industry players and by tools providers to collaborate on the creation and support of Open Source tools for the development of embedded systems.

Coaching & Training

Capella™ comes along with its methodology – Arcadia – that guides you through the different steps of the architecture design. But still, it doesn’t totally prevent the white page syndrom, nor it provides the only true way to achieve your design goals.

Either you are looking for modeling guidance and best practices to start your architecture design or you want to adapt the methodology to your specific domain, our coachs can help you to take advantage of all the benefits from Capella™ & Arcadia.

For a project kickoff, methods & tool evaluation, existing model audit and refactoring, from a single session to the long term support of you project, we will find out together the best way to help you.

Integration support

You need to add specific information to Capella™ models to address your business or you need to setup bridges between Capella™ and other tools?

Capella™ natively provides extension mechanisms to either add new semantics to your models (viewpoints) or simply inject new functional features.

We, at Artal, have a long experience in the development of Capella™ viewpoints, bridges and extensions. Having a pretty good knowledge of Capella™ internals allows us to propose you with the most accurate solution for your specific needs. Starting with our Capella™ extension specification guide and using our Capella™ development forge, we will efficiently support you from early requirement phase to deployment.

Our Capella™ extensions

Discover the commercial extensions we have developed for Capella™.


Yuzu for Capella™
The assets manager

Store and keep tracks of all your Capella projects, libraries and dependencies.


V&V / Test Means

Define your V&V Objectives, organize your V&V Plan and deduce the content of the required Test Means. 

Capella bridges

Capella Bridges

Import/export the informations stored in your Capella models in other format. The transformation you need might be here.

Nicer diagrams

Nicer Diagrams

Customizing and rearranging your diagram has never been so easy, you just need the right extension.  



Define the temporal properties of your system and launch an analysis within Time4Sys™.

RAMS - Safety

RAMS – Safety

From System Engineering to Safety specification, complete your capella models with safety information.

Capella Extension

Additional viewpoints

Capella is just a star in its galaxy. Let’s explore all the surrounding astral object developed by Artal.


The following tables gives a quick overview of our current developed extensions of Capella. Not developed in this version, code source available, build working and ready.

  Capella Version    
Viewpoint name 1.2.x 1.3.x 1.4.x 5.x.x Open Source Link to description
Capella2EA         YES Capella2EA
Capella2SysML         YES Capella2SysML
Capella BPMN         NO CapellaBPMN
Capella RAMS         NO RAMS
Capella VVO         NO VVO
Nicer Diagram         NO NicerDiagram
Nicer Layout (ELK)         NO NicerLayout
X Matrix         NO X-Matrix
Tideal         NO Tideal
Arinc 653
Arinc 653







To know more about our Capella™ offers, please mail to or fill out this form:

    ARTAL Technologies

    1 rue Ariane
    31520 Ramonville / FRANCE