Update of the Clock Radio Capella Model (start)

During my SysML trainings, I have been using for several years now a simple example of a system: the Clock Radio. This is even the main example of my SysML introductory book in French, published by Eyrolles in 2013.

As part of the Clarity project, it seemed natural to do the same exercise with Capella using the Arcadia approach and concepts. I published in 2015 a first version of the model (with Capella 1.0) where I concentrated on the System Analysis level, trying to illustrate the main types of diagrams, but also ensuring the traceability with the operational need expressed in Operational Analysis. Then a second version of the model, with the Logical Architecture level. And finally a third version of the model with the Physical Architecture level and a small example of Viewpoint: Basic Price.

It was high time to update this model, trying to illustrate the new features provided by Capella 1.2.1 and now Capella 1.3.

The first version of the new model is downloadable here. It mainly contains the System Analysis level, because the operational need is very simple ūüėČ You will find examples of SMCB, SAB, SCDB, SES, SMSM, with several variations of each.

The progressive construction of the model is presented in a small explanatory document. The model and its companion document will be progressively completed with a Logical Architecture level, a Physical Architecture level, then the use of the Requirements add-on and of Property Values ‚Äč‚Äč…

An example of Exchange Scenario Diagram that was not possible before Capella 1.2.1 is given below. This is a scenario showing how two instances of the same User actor can interact with the Clock Radio.

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25 Jan 2019

Happy New Year 2019!

PRFC wishes you the best for 2019, with the implementation of an effective MBSE approach!

Let us do a quick review of 2018 from our side.

2019 seems to start on the same basis with already several Arcadia / Capella courses scheduled on customer site in France, Germany and the United Kingdom …

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02 Jan 2019

A new training course: “Capella Reader”!

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I regularly get requests for Capella trainings that would be shorter than the standard curriculum, for people who will not directly work with the tool on the creation of models, but rather as readers of diagrams made by others.

This may be the case for a client working with a contractor that uses Capella, who wishes to understand well diagrams of both Operational and System Analysis levels which are provided to him/her, in order to collaborate efficiently with the contractor. Or the case of a project leader whose architects and system engineers use Capella on a daily basis, and who must validate diagrams done on the project at all Arcadia levels. Or for a specialty engineer who must understand and leverage Physical Architecture diagrams and maybe Logical ones too.

If you are in one of these cases, this new 2-day training is made for you!

Standard content is possibly ajustable according to Arcadia levels concerned and the types of diagrams you’ll need to master.

Do not hesitate to contact us for any special needs and we’ll forward you a customized offer…

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12 Apr 2018

An expanded MBSE training offer for 2018!

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The¬†MBSE training offer will become richer and more modular in 2018, distinguishing better from one side ‘Language & Method’, and the other ‘Tool’, with two major streams:
The general scheme is as follows:
  • MBSE with XX¬†training contains 66% theory and 33% group reflection on a case study (without tool)
  • YY in Action training contains instead 75% of practice (with a modeling tool) and 25% of theory illustrated with examples

MBSE with XX training is a strongly recommended prerequisite of the corresponding training YY in Action.


This new scheme will enable to gradually enrich the offer with new modules, such as:










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23 Feb 2018