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This article presents a method for using a system model to assess the system’s compliance with modular and open systems (MOSA) principles. The MOSA assessment method starts by generate a SysML model of the system’s physical and behavioral aspects. The model data is exported, processed, and then imported into a MatLab program implementing two modularity measures from the literature and an assessment approach for open interfaces. The model is verified and validated using several idealized systems. The article then demonstrates the method on a testbed for hypersonic missiles, which is desired to support as many experiments as possible by being modular and open. The results of the study show it is possible to extract the relevant data from models and use the data to assess modularity and openness of a system.

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Assessing Modularity: Putting Models to Work in Model-Based Systems Engineering

  • 会议论文

  • 发表日期：

    2026年

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  • Neil Olson,
  • Ronald Giachetti

摘要

This article presents a method for using a system model to assess the system’s compliance with modular and open systems (MOSA) principles. The MOSA assessment method starts by generate a SysML model of the system’s physical and behavioral aspects. The model data is exported, processed, and then imported into a MatLab program implementing two modularity measures from the literature and an assessment approach for open interfaces. The model is verified and validated using several idealized systems. The article then demonstrates the method on a testbed for hypersonic missiles, which is desired to support as many experiments as possible by being modular and open. The results of the study show it is possible to extract the relevant data from models and use the data to assess modularity and openness of a system.