Category: MBSE

Structure of a SysML model

Structure of a SysML model

On the first view it seems to be simple to define the package structure of a SysML model. However you’ll often get problems with a implicit built structure. A model has many – orthogonal – aspects and abstraction layers that could be mapped into the package structure, e.g. domain, modeling, or organizational aspects. You can…
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SysML Matrix Example: Functional groups of the FAS method (source: http://www.fas-method.org)

New views for SysML

I often hear arguments against SysML that the diagrams are not suitable for the stakeholder concerns. For example it is not a good idea to choose the requirements diagram to show thousands of requirements or a block definition diagram to show the complete mapping of the functional to the physical architecture with allocate relationships. It…
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Variant Modeling with SysML

Many systems exist in different configurations. A product line, a custom product or different designs for trade-off studies. The current version 1.2 of SysML doesn’t provide explicit built-in language constructs to model variants. The profile mechanis of SysML can be used to extend SysML with a concept for variant modeling. I’ve defined a simple variant…
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Problems, introduction and opportunities of MBSE

In my last post I’ve reported from my visit of the Graz Symposium Virtual Vehicle Development. In my workshop at the symposium I asked the participants about the problems that are solved by MBSE. what must be done/what we need to introduce MBSE in the organization. the opportunities of MBSE. We had very interesting discussions about…
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MBSE meets Virtual Vehicle Development

Virtual Vehicle development is an exciting new technology. This week I’ve visited the 5th Graz Symposium Virtual Vehicle in Graz (Austria). I was very impressed by the engineering methods & tools that were already reality. An important missing link for the virtual vehicle development is the combination of all the single models and simulations in…
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Open source MBSE Plugin for MagicDraw with SysML

A message from the  INCOSE Telescope modeling challenge team: The INCOSE Telescope modeling challenge team releases version 1.1. of its MBSE plugin for MagicDraw with SysML: https://sourceforge.net/projects/mbse4md/ Support for more productive Model-Based Systems Engineering, following the recommendations in the Cookbook of the INCOSE SE2 Challenge team. The Plugin for the MagicDraw modeling tool provides support for…
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Systems Engineering mit SysML/UML

Next edition of my MBSE book

For a few months, I work on the next edition of my MBSE book “Systems Engineering with SysML/UML”. I plan to publish it in the first quarter of 2013. It’ll be the third edition of my German version. So far, I have no plans for the English version of the book. New content will be:…
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What’s new in SysML 1.3

The newest version 1.3 of the SysML will be published in a few weeks. The development of the version 1.3 already finished last year and we currently work on the next version 1.4. I’ll report on the work for the 1.4 version in a separate post in the near future. Typically the dot versions of…
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The SysML callout notation

I’ve just found this question in a sysml discussion forum: Is it really not possible to place requirements objects on an Activity, State Machine, or several other similar behavioral diagrams? Yes, it is not allowed to put requirement elements on a state machine or activity diagram. Since it is essential to show such cross cutting…
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The SYSMOD Zigzag Pattern

Are your requirements really free of any solution? Requirements describe the What, the system architecture describes the How. Sounds easy, but…. Requirements are solution-free and they contain solution aspects at the same time. It depends on the level of abstraction. Let’s assume that you have absolutely solution-free requirements (I argue that those requirements are not…
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