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Most analysts will tell you that Model-Based Systems Engineering (MBSE) is not really about any particular type of model or visualization of data and information.

Model-Based Systems Engineering is about the underlying data and information model that enables consistency across the data and information that represents the various models and visualizations.

It’s important to understand that when it comes to MBSE, one size doesn’t fit all. Experts in this area believe organizations need to assess their needs and produce an MBSE solution that best fits its domain, product line (degree of complexity), and culture.

At the very least, organizations turning to MBSE need to establish a capability to define and manage needs, requirements, verification, and validation across the system lifecycle.  These capabilities will allow the organization to build a data and information model of their products and systems engineering process activities and artifacts.

Systems Modeling Language (SysML) is a general-purpose graphical modeling language for specifying, analyzing, designing, and verifying complex systems that may include hardware, software, information, personnel, procedures, and facilities.

SysML has become the go-to modeling language for MBSE.

The advantages of SysML over its predecessor UML for systems engineering become obvious when considering a concrete example, like modeling an automotive system.

With SysML systems engineers can use Requirement diagrams to efficiently capture functional, performance, and interface requirements, whereas with UML one is subject to the limitations of use case diagrams to define high-level functional requirements.

Additionally, with SysML engineers can use Parametric diagrams to precisely define performance and quantitative constraints like maximum acceleration, minimum curb weight, and total air conditioning capacity. UML provides no straightforward mechanism to capture this sort of essential performance and quantitative information.

Another advantage of SysML is SysML is a comparatively smaller language that is easier to learn and apply. Since SysML removes many of UML’s software-centric constructs, the overall language measures smaller both in diagram types and total constructs.

Want to learn more? Tonex offers Hands-on MBSE and SysML Training Workshop with Modelio, a 5-day course that teaches participants how to implement essential MBSE and SysML modeling concepts through case studies, hands-on sessions and exercises with Modelio tool supporting Systems Modeling Language (SysML) modeling functional requirements, structural model, low level design model, behavioral model, parametrics & simulation.

For more information, questions, comments, contact us.

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