Entity Framework won't define its own unique representation for the set of changes represented in an N-Tier application.
对于N层应用程序中所描述的更改集合,Entity Framework并无定义自己独特的表示法。
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With the N-Tier improvements for Entity Framework, we want to address some of the same problem space as DataSet, but we want to avoid the primary issues with it.
One important aspect of N-tier development is the ability to exchange entity state between the server and the client. Diego Vega, Program Manager ADO.NET entity Framework, details this further.