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Sep08

Campaign Finance and the Systems Engineer

by zscott

Zane Scott, Vitech Vice President of Professional Services

As is the case with many things in life, there is a fundamental, value-adding perspective that the systems engineer can bring to the discussion of campaign finance. While much of the popular discourse on this subject is not all that illuminating, systems engineers are positioned to add insight to the analysis of this important and timely topic.  More...

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Categories: Misc

Sep01

Thinking about “T” teams and self lenses in Edinburgh

by mrich

By Miriam Rich, Vitech Marketing & Communications Manager

As the seasons begin to turn once more, many in the northern hemisphere return from their summer holidays while those in the southern hemisphere look forward to the first days of spring. For those in the systems community – wherever we may call home – it is a good opportunity to reflect once again on the insights and shared experiences of IS 2016, the year’s premiere systems engineering event. More...

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Categories: MBSE | Misc | Vitech

Aug25

Variant Management in CORE and GENESYS (Part I)

by rkratzke

By Ron Kratzke, Principal Systems Engineer

When teaching classes on model-based systems engineering, I am frequently asked about methods to manage different system configurations in the model. Most engineers are very comfortable thinking in part structures, and while this is a critical aspect of systems engineering, it’s not the whole story. To answer the question and manage variants, we leverage the generalization/kind of relation in parallel with part structures.

Classical systems engineering is concerned with the decomposition of our physical architecture (the bill of materials). In the Component class, this decomposition structure is captured using the parent-child relation built from. A system is built from its subsystems, and those subsystems are built from their constituent parts. An automobile is built from its chassis, drive train, engine, and more. In the Geospatial Library example provided with CORE and GENESYS, the Geospatial Library (the system of interest) is built from the Workstation and Command Center subsystems.

Graphically, the decomposition of the physical architecture is shown in a classic physical hierarchy or a SysML structure block definition diagram (BDD). Both diagrams represent the built from parent-child relation.

 

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Categories: CORE Software | GENESYS | MBSE | Tips and Tricks

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