The ADO.NET Entity Framework is designed to support data-centric applications and services, and provides a platform for programming against data that raises the level of abstraction from the logical relational level to the conceptual level.

• NET实体框架被设计成支持以数据为中心的应用程序以及服务，提供了一个基于数据的编码平台，因此提升了从逻辑层到概念层的抽象级别。