From the recovered abstract structure of the legacy system (the Analysis Model associated to the system Use Cases), we must now find the components of the information system that implement it.
在所恢复的遗留系统的抽象结构中(与系统用例相关联的分析模型)，我们现在必须找到实现它的信息系统的组件。
When somebody designed that database, they didn't have tables like this, so they moved from a model of abstract things they wanted to represent into some physical database structure.
最初设计数据库时，并不存在这样的表，因此这些表需要从抽象的模型中得出，表现为某些实际的数据库结构。
The dynamic feature of the model satisfies both the needs of the presentation of mechanical structure with many abstract levels and the design thinking pattern.
该模型所具有的动态性使其既满足多抽象层次表示机械结构的需要，又符合设计思维的要求。
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