We are still waiting for the official release of the SysML version 1.4. The work on the update already finished several months ago. Due to some organization obstacles the official release is delayed. In April 2014 the OMG published a beta version of the SysML 1.4 and some tool vendors already published updates of their modeling tools with SysML 1.4. You can find the SysML 1.4 beta specification on the SysML specification website. So it is time to report about the...

My publisher just released the third edition of my book "Systems Engineering with SysML/UML". To be exact it is the German version of my book "Systems Engineering mit SysML/UML". Since the second edition 6 years have passed. In this time the language SysML, my MBSE methodology SYSMOD and MBSE in general have been further developed. The media book could hardly follow the high dynamics that currently happens in our engineering environment. Extremely spoken the book is outdated when it leaves the...

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 versa during the discussions participants gave an insight to their knowledge and experience. I've learned a lot! The NoSE Tour is a non-commercial event organized by four...

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 for networking. It is not a commercial event. It’s organized by four local chapters of INCOSE and our objective is to strengthen systems engineering and the...

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 set of artifacts that are part of an architecture. It could be anything. This definition - as any other - is vague at the borderline. It does...

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 2013 - A Report from the Tour. We do a new tour this year. The Nordic Systems Engineering Tour 2014 starts in Hamburg at May, 20th,...

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), state machines or opaque behavior. However I favor the activity. Typically in a SysML model the activitiy is in the namespace of the use case. You...

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 system. It is part of the bill of material (BOM) and could - as any other part - specify behavior and an internal structure. The type of...

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 high-tech strategy to establish Germany as a pioneer in solving the global challenges of our time. The term industry 4.0 refers to the thesis that we are...