Many approach of system model builder can only build a static model, does not provide the system model simulation, once the model appears problem, we have to modify the entire system.

很多系统构建模型方法都只能构建静态模型，不提供对系统模型的模拟仿真，一旦模型构建出现问题，就需要对整个系统进行修改。

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A small intestinal villosity microvessels model and a circulatory simulation system were made.

制作了一个小肠绒毛微血管模型和一个循环模拟系统。

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For the optimist, the problem is that simulation of the business domain model may, or may not, have any relevance in the system domain or in the enactment domain.

对于乐观主义者来说，其问题是：关于业务领域模型的仿真与系统领域或规则制定领域，或许相关，也或许无关。

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