During the design phase, architectural methods and components are selected in areas where change is expected and flexibility is required in the functional requirements.

在设计阶段，要在预期会发生变更的领域选择体系结构方法和组件，而且功能需求中要求实现灵活性。

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Situations such as these are usual in concurrent engineering design environments where similar prototype parts are required simultaneously by different cross-functional design teams.

这些状况在并行工程设计环境中十分常见，不同的跨职能的设计团队同时需要相似的原型零件。

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