25 Jan 2019

Update of the Clock Radio Capella Model (start)

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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 😉 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 ​​…

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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