About the ‘S’ in MBSE

Caminao's Ways

Preamble

As demonstrated by a simple Google search, the MBSE acronym seems to be widely and consistently understood. Yet, the consensus about ‘M’ standing for models comes with different meanings for ‘S’ standing either for software or different kinds of systems.

Tools At Hand (Annette Messager)

In practice, the scope of model-based engineering has been mostly limited to design-to-code (‘S’ for software) and manufacturing (‘S’ for physical systems); leaving the engineering of symbolic systems like organizations largely overlooked.

Models, Software, & Systems

Models are symbolic representationsof actual (descriptive models) or contrived (prescriptive models) domains.Applied to systems engineering, models are meant to serve specific purposes: requirements analysis, simulation, software design, etc. With software as the end-product of system engineering, design models can be seen as a special case of models characterized by target (computer code) and language(executable instructions). Hence the letter ‘S’ in the MBSE acronym, which can…

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