In this fifth and final installment, we look at two examples from the important domains of CAD and simulation to illustrate the “Internet-of-Tools” concept as applied to our Smart Home Internet-of-Things model. In the first example, a CAD model is linked to structural blocks in the SysML model of the 4 Room Smart Home, so that changes in the design can be transmitted to the SysML model and evaluated using existing SysML parametric analysis. In the second, the SysML model is used to generate a Simulink block structure, with a network of persistent connections that allow differencing and reconciliation as the models evolve.

In this series, we have attempted to show how SysML is an effective vehicle for IoT (Internet-of-Things) modeling and simulation, bringing the diverse perspectives of requirements, structure, behavior and parametrics into a common regime. We have also shown how new approaches to Model-Based Engineering, an “Internet-of-Tools”, allow those SysML models to be linked to databases, PLM, CAD and simulation tools to carry out important parts of the IoT engineering process.

The models shown in this series are now available for download in MagicDraw 18.0 SP5 (download link) and Enterprise Architect 12 (download link). InterCAX products ParaMagic, Solvea and Syndeia are not required to view the models, but would be needed for the model connection and solving operations described in the series.

CAD model of the SmartHome is connected to the SysML model for parametric analysis

CAD model of the SmartHome is connected to the SysML model for parametric analysis

 Top-level Simulink SmartHome model generated from SysML model using Syndeia

Top-level Simulink SmartHome model generated from SysML model using Syndeia

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Dirk Zwemer

Dirk Zwemer

Dr. Dirk Zwemer (dirk.zwemer@intercax.com) is President of Intercax LLC (Atlanta, GA), a supplier of MBE engineering software platforms like Syndeia and ParaMagic. He is an active teacher and consultant in the field and holds Level 4 Model Builder-Advanced certification as an OMG System Modeling Professional.