DAS将后端元数据转换成标准的sdo格式。
The DAS translates back-end metadata to the standard SDO format.
目标仓库数据的建模是将需求转换成图画以及支持表示那些需求的元数据的过程。
Modeling the target warehouse data is the process of translating requirements into a picture along with the supporting metadata that represents those requirements.
在两个状态之间执行转换时，元数据是否需要满足一些必要的条件？
When executing a transition from one state to another, are there requisite conditions for the metadata?
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