Tag: SysML

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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Death of the Use Case

Criminal Scene Investigation: Death of the Actor and the Use Case

The previous posts Death of the Actor and Death of the Use Case reported about two serious killings in the modeling scene. Many eyewitnesses commented the report. Now it is time for a short review. First the good news: The concepts Actor and Use Case survived the massacre. I’ve seen them still alive and very active…
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Trophy - Popular SysML modeling tool

Most popular SysML modeling tools

Please click here: http://list.ly/list/23A-popular-sysml-modeling-tools Unfortunately I have technical problems with the list.ly WordPress plugin and can’t show the list embedded in this blog post.

SysML activity tree with object nodes

Hidden feature of SysML – Activity Trees

It is very well unknown and I know only a single modeling tool that explicitly supports it: the SysML activity tree. Although it is very useful and supports common systems engineering practice. What am I talking about? You may know use cases and activities to describe the use case flows. Simply spoken they describe the…
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Structure of a SysML model with metadata Issues, Notes, and Sketches

Metadata in the model

Models do not only contain the “real” artifacts for your system, but also additional auxiliary information like notes, issues, images, and so on (metadata). It is very useful to store such information at the place where you need or create it. Switching from one tool to another is a hurdle that prevents people from looking…
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Extended system context with SysML - FFDS example

How to model an extended system context with SysML

The extended system context describes the system interfaces and the detailed connection to the system actors and to the internal parts of the actors. In the previous post How to model a simple system context with SysML I’ve written about system context in general and the simple edition of system context that is simply spoken just…
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System context Forest Fire Detection System with SysML

How to model a simple system context with SysML

The system context defines the system boundary and all system actors – humans and external systems – that interact with the system under development. It is one of the most important parts of the system model. Many artifacts of the system specification and architecture are relative defined to the definition of the system. Every system behavior…
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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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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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