在精化阶段，我会建议将概念模型中的业务实体映射到遗留系统中的源数据库。
During the Elaboration phase I would suggest mapping business entities within the conceptual model to the source databases within the legacy systems.
注意概念模型是如何只确定主要业务实体的，例如Customer、Store和Item，以及这些实体之间的关系的。
Notice how the conceptual model only identifies major business entities such as Customer, Store, and Item as well as the relationships between them.
这些类按照特定的概念模型派生自可以将实体物化成对象的支持对象服务的基类从而可以实现跟踪和保存变更。
The classes generated for a particular conceptual model derive from base classes that provide Object Services for materializing entities as objects and for tracking and saving changes.
实体框架生成可扩展的类，使得开发人员能够将这些类和概念模型中的实体以及类一起协同工作。
The Entity Framework generates extensible classes that developers can use to work with the entities and relationships in the conceptual model.
用扩展的实体—联系方法描述学科体系结构的概念模型。
The conceptual model of the discipline architecture is represented through an extended entity-relationship approach.
实体框架给概念模型带来了新的生命力，实体框架支持对概念模型进行设计并连接到逻辑模型以及物理模型。
The Entity Framework gives life to conceptual models by enabling them to be programmable and connected to underlying logical and physical models.
在每个概念模型中必须至少定义一个实体容器。
At least one entity container must be defined in each conceptual model.
每个概念模型中的实体容器必须有唯一的名称。
The entity container must have a unique name within each conceptual model.
NET实体框架可以帮助您开发应用程序，以便您可以将数据用作在概念模型中定义的实体。
NET Entity Framework helps you develop applications in which you work with data as entities that are defined in a conceptual model.
在概念模型中，实体类型是以属性建构而成的，用于描述最上层概念的结构，例如商务应用程序中的客户和订单。
In a conceptual model, entity types are constructed from properties and describe the structure of top-level concepts, such as a customers and orders in a business application.
本主题介绍如何手动创建一个概念模型，其中将一个实体类型映射到基础数据库中的两个表。
This topic describes how to manually create a conceptual model in which an entity type is mapped to two tables in the underlying database.
您可以将概念模型中描述的实体和关联视为应用程序中的抽象物件和关联。
Entities and relationships described in a conceptual model can be thought of as abstractions of objects and associations in an application.
在概念模型中使用旧式数据时，有时可以将一个实体映射到数据库中的两个表会非常有用。
When using legacy data in a conceptual model, it is sometimes useful to be able to map a single entity to two tables in the database.
本主题描述如何创建每种类型多个实体集(MEST)的概念模型。
The topic describes how to create a conceptual model with multiple entity sets per type (MEST).
特性的基类，这些特性定义如何将对象层中的类型映射到概念模型中的实体类型和复杂类型。
Base class for attributes that define how properties of types in the object layer are mapped to the properties of entity types or complex types in the conceptual model.
下面的CSDL为上图所示的概念模型定义了一个实体容器。
The following CSDL defines an entity container for the conceptual model shown in the diagram above.
技术如实体框架和WCF数据服务使用转换到的数据库操作的对象操作的概念模型。
Technologies such as the Entity Framework and WCF data Services use conceptual models to translate object operations into database operations.
NET实体框架可以定义包含继承层次结构的概念模型。
NET Entity Framework enables you to define a conceptual model that includes inheritance hierarchies.
根据计算机生成兵力的特点提出了基于控制论的CGF实体对象行为模型ESCP的概念模型、形式化模型和结构模型。
Based on the characteristic of CGF, the thesis presents a behavior model of CGF entity named ESCP and its concept model, formalization model and construct model.
“生成数据库”向导(实体数据模型工具)自动生成支持此概念模型的存储模型、映射、数据类和数据库。
Generate database Wizard (Entity data model Tools) to automatically generate the storage model, mappings, data classes, and a database that supports the conceptual model.
虽然该图没有传达实体容器信息，但概念模型必须定义一个实体容器。
Although the diagram does not convey entity container information, the conceptual model must define an entity container.
CSDL将应用程序数据表示为概念模型中的一组实体和关系，它是实体数据模型的实现。
CSDL represents application data as a set of entities and relationships in a conceptual model, and it is an implementation of Entity data model.
如何：定义单个实体映射到两个表的模型中定义的概念模型。
How to: Define a Model with a Single Entity Mapped to Two Tables.
NET实体框架使用一种称为概念架构定义语言(CSDL)的dsl来定义概念模型。
NET Entity Framework USES a DSL called conceptual schema definition language (CSDL) to define conceptual models.
实体资料模型精灵可以让您从现有的资料库产生概念模型，并且将资料库连接资讯加入到您的应用程序。
The Entity data model Wizard allows you to generate a conceptual model from an existing database and adds database connection information to your application.
实体资料模型精灵可以让您从现有的资料库产生概念模型，并且将资料库连接资讯加入到您的应用程序。
The Entity data model Wizard allows you to generate a conceptual model from an existing database and adds database connection information to your application.
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