Model-based systems engineering (MBSE) has been proposed as an approach to manage the complexity of modern product development through the continuous use of models. The use of model simulation is a core principle of the MBSE approach. In the early stages of projects, it for example supports defining the expected system features, when in the later phases it can be used to estimate the dynamic behavior. Simulation is pushed to obtain results earlier and cheaper than with testing and prototyping. However, the development of simulation can be a very tedious and expensive task. Simulation opportunities are numerous, but the project managers must identify the more relevant for their project. This paper aims at documenting the current state of practice on the usage of simulation in MBSE processes. Then it aims at exploring decision support opportunities for simulation use in MBSE projects. The paper presents a survey conducted amongst French companies, on how they apply MBSE, Verification Validation & Testing (VVT), and simulation. The perceived benefits, barriers, and the parameters influencing VVT strategies, and the use of simulation are alternately analyzed. The results of the survey are used to propose a Prioritization of Simulation Efforts Methodology (PSEM) to assists managers in choosing the right functions, or systems’ elements to be simulated.

已经提出了基于模型的系统工程（MBSE）作为通过连续使用模型来管理现代产品开发的复杂性的方法。模型仿真的使用是MBSE方法的核心原理。例如，在项目的早期阶段，它支持定义预期的系统功能，而在后期阶段，它可以用于估计动态行为。与测试和原型制作相比，推动仿真的目的是更早，更便宜地获得结果。然而，仿真的发展可能是非常繁琐且昂贵的任务。模拟机会很多，但是项目经理必须确定与他们的项目更相关的机会。本文旨在记录在MBSE流程中使用模拟的当前实践状态。然后，它旨在探索在MBSE项目中使用模拟的决策支持机会。本文介绍了在法国公司中进行的一项调查，调查内容涉及法国​​公司如何应用MBSE，验证验证与测试（VVT）和模拟。交替分析感知到的收益，障碍以及影响VVT策略的参数以及模拟的使用。调查的结果用于提出模拟努力方法的优先顺序（PSEM），以帮助管理人员选择正确的功能或要模拟的系统元素。并交替使用仿真进行分析。调查的结果用于提出模拟努力方法的优先顺序（PSEM），以帮助管理人员选择正确的功能或要模拟的系统元素。并交替使用仿真进行分析。调查的结果用于提出模拟努力方法的优先顺序（PSEM），以帮助管理人员选择正确的功能或要模拟的系统元素。