其中并没有反向项目或模型代码同步，在这个方法中的源通常是模型。
There would be no reverse engineering or model-code synchronization, as the source in this approach is always the model.
UML建模是有价值的技术，但人工地将模型和代码同步是容易出错且消耗时间的。
UML modeling is a valuable technique by itself, but manually synchronizing models and code is error-prone and time consuming.
同样是在这个阶段，设计模型同代码同步，以便模型中发生的变化能够被传送到代码中。
Also during this phase the design model was synchronized with code so that changes in the model could be forward engineered to code.
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