Author: Tim Weilkiens

Logo OMG Systems Modeling Language (OMG SysML)

What’s new in SysML 1.5 – Requirements modeling

This post is the second part of the blog post series about the changes of SysML 1.5. The biggest novelty in SysML 1.5 is only visible on the second view. If you do not use the new feature, you will not recognize it. Since version 1.0 SysML provides the model element Requirement to model text-based requirements,…
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Logo OMG Systems Modeling Language (OMG SysML)

What’s new in SysML 1.5 – Overview

This blog post series presents the changes of the SysML version 1.5 that are relevant for modelers. I skip those changes that only affect the specification document like typos or rewordings. You may also be interested in the blog post series about the changes in the SysML version 1.4. The first part of this blog…
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Nordic Systems Engineering Tour (NoSE) 2017

The 5th Nordic Systems Engineering Tour Call for Presenters: Last orders, please!

Five years ago, Erik Herzog and I had the idea for a special conference tour in northern Europe. The Nordic Systems Engineering Tour was and is still a great success. Organized by the local chapters of INCOSE in Finland, Sweden, Denmark, Germany, and Poland it is an event from and for the systems engineering community…
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SYSMOD book front cover

New SYSMOD version published

The second edition of my book SYSMOD – Systems Modeling Toolbox – Pragmatic MBSE with SysML was published by MBSE4U. It is based on the SYSMOD version 4.1 and SysML 1.4. What’s new? Updated the variant stereotypes based on my new book Variant Modeling with SysML (published by MBSE4U, 2016). The variant stereotypes are part…
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Swiss Engineering Day SWISSED 2016

Favorite SE methods that increase an organization’s competitiveness

Last week I was a panelist together with Bruce P. Douglass and Stefan Hänggi at the SWISSED conference in Zurich. The topic of the panel was “How does implementing Systems Engineering enhance an organization’s competitiveness?”. We had a very good discussion and since I was one of the panelists and not the minute taker I cannot…
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Nordic Systems Engineering Tour (NoSE) 2017

NoSE 2016 Tour Report

NoSE 2016 successfully finished in Warsaw today. The 4th Nordic Systems Engineering Tour was again a great event. The tour speakers started in Helsinki at Monday, headed then to Stockholm at Tuesday, Copenhagen Wednesday (in collaboration with the Systems Engineering Spring School), Hamburg at Thursday and finally Warsaw. Each location was enriched by talks of…
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Slackness

The Gap of Slackness

The figure shows the Gap of Slackness. The vertical axis represents the typical challenges for product vendors. They are for example more innovation, less time-to-market, less cost, and perfect quality. You can certainly mention more of them for your domain. The system curve along the time always increases and reflects the steadily increasing demand for…
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MBSE4U – Publishing on the Pulse of the Market

End of 2015 I have founded the publishing platform MBSE4U for MBSE books. A few days ago I have updated my social media profiles with MBSE4U and got a lot of responses. Therefore, a few short notes to clarify things. The mission of MBSE4U is to provide books with up-to-date content about model-based systems engineering.…
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Variant Modeling with SysML - https://leanpub.com/variantmodelingwithsysml

New book “Variant Modeling with SysML”

I have just published my new book „Variant Modeling with SysML”. It presents a method for modeling variants of system requirements and system architecture artifacts with standard SysML and a standard SysML modeling tool. About 10 years ago I published the method and SysML profile for the first time. Since then I have had many…
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The Myth of the Association

The association is a strange model element. And many myths about the association are going around. For example, think of all the discussions about the meaning and difference of aggregation and composition. Did you know that the concepts of aggregation and composition have not much to do with associations? I will not explain the association…
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