For instance, you can create a complex deployment topology but manage complex relationships in different layers, or you can use the layers to show how a design might change over time.

例如，您可以创建一个复杂的部署拓扑图，在不同的层上管理复杂的关系，或者您可以使用层来显示一种设计方案随着时间的变化。

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For lookup relationships the instance data is manually populated at design-time.

对于查询关系，实例数据在设计时以手动方式填充。

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In another words, human task roles can only be assigned at design time or runtime at the instance level, but cannot be readily assigned from the template.

换言之，仅可在设计时或运行时在实例级分配人工任务角色，但是不能从模板中随时分配。

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