Author: Tim Weilkiens

NoSE Traveling 2014: David Long, Tim Weilkiens, Paul Schreinemakers, Jonas Andersson

NoSE 2014 – A Report from the Tour

What a great week! Summer, Fun, Great Cities and Systems Engineering. The 2nd Nordic Systems Engineering Tour from Hamburg via Copenhagen and Stockholm to Helsinki has just finished. Four tour speakers who did the whole tour and several local speaker gave great performances and shared their knowledge and experience with nearly 200 participants. And vice…
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NoSE on Tour 2014 – Here we go!

The Program is online, the registration is open – we are looking forward to see you in Hamburg, Copenhagen, Stockholm or Helsinki. Register here! The 2nd Nordic Systems Engineering Tour 2014 starts May 20th in Hamburg and ends May 23rd in Helsinki. At each venue we provide a one-day conference with great speakers and time…
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Collaboration Requirements Engineering / Systems Architect

A System Architecture is what System Architects create

There are hundreds of definitions about architecture available. Fortunately they have a lot of things in common. Personally I like the following definition: “An architecture is the set of fundamental decisions that cannot be reversed without greater effort and impact.” That definition focusses on the role of the system architect. It does not define the…
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European Systems Engineering Tours

Last year we did the first Nordic Systems Engineering Tour. It was a fantastic success. We had great presentations, discussions and of course fun! Behind the scenes it was a collaboration between the German and the Swedish chapters of INCOSE and the Danish systems engineering community. See also my blog post about the tour: NoSE…
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Use case with property ownedBehavior shown in a diagram

HowTo Model Use Case Activities in SysML

Activities are commonly used to describe the behavior of use cases. In SysML these are separate model elements: the use case and the activity. The use case is a specification of behavior. Whereas the activity is the definition of the implementation of the behavior. Instead of an activity you can also use interactions (sequence diagrams),…
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SysML 1.3 / SYSMOD Reference Card (English)

SysML 1.3 Reference Cards available in English, German and French

Now the SysML 1.3 reference card is also available in French. Thanks to Jean-Michel Bruel for the translation. You can download the reference card in English, German, and French language from the download section. Currently I work on the new SysML 1.4 version and will publish it as soon as SysML 1.4 is final.

SysML Full Ports versus Proxy Ports

How to use full ports and proxy ports and what’s the difference? SysML changed the way how to model ports with version 1.3 in 2012. (see also What’s new in SysML). Besides others the new version 1.3 introduced the concept of full and proxy ports. Full port A full port is an element of the…
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Manufacturing - Industry 4.0

The 4th Industrial Revolution

In the German manufacturing community everyone talks about Industry 4.0. But hardly anyone could say what it really is and what that supposed to mean. I’ll shed a little more light on it and show the relationship to MBSE. Industry 4.0 Industry 4.0 is a project of the German government in the context of their…
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Nordic Systems Engineering Tour

NoSE 2013 – A Report from the Tour

From April 15th to April 17th I did the first Nordic Systems Engineering Tour. I’ve initiated the tour together with Erik Herzog from Saab in Sweden. NoSE is a 1-day conference event in Hamburg, Copenhagen, and Stockholm in 3 days. The purpose of the events is to promote Systems Engineering and also to strengthen the…
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APE Product Tree (

What is a model?

Could you easily answer this question? Is a document a model? Why not? Most references define a model or properties of a model like this A model is a representation of something. It captures not all attributes of the represented thing, but rather only those seeming relevant. The model is created for a certain purpose…
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