然而，它是一种用于管理更改和确保再现性的已证实的技术。
It is, however, one proven technique for managing change and ensuring reproducibility.
向模型添加精确度的一种已证实的方法是通过使用约束和OCL。
A proven approach to add precision to a model is through the use of constraints and OCL.
通过使用设计模式，您能够利用已证实的导致更佳设计和更快实现的解决方案。
By using design patterns, you are able to leverage proven solutions, which lead to better design and faster implementation.
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