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ADO.NET Entity Framework Marcus Tillett. Overview. Introduction to ADO.NET Entity Framework Using the Visual Studio Tools. OO Architect vs. Data A rchitect. Requirement to use an OO language to manipulate entities persist these in a relational database Impedance mismatch.

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Overview l.jpg
Overview

Introduction to ADO.NET Entity Framework

Using the Visual Studio Tools


Oo architect vs data a rchitect l.jpg
OO Architect vs. Data Architect

Requirement

to use an OO language to manipulate entities

persist these in a relational database

Impedance mismatch


Ado net entity framework l.jpg
ADO.NET Entity Framework


Logical model l.jpg
Logical Model

Logical layer stored as schema definition language (SSDL)


Conceptual model l.jpg
Conceptual Model

Conceptual model is an Entity Data Model (EDM) schema stored using conceptual schema definition language (CSDL)


Mapping l.jpg
Mapping

A mapping specification uses mapping specification language (MSL) to connect the types declared in CSDL to the database metadata declared in SSDL





Table per type l.jpg
Table per Type

http://martinfowler.com








Table per hierarchy l.jpg
Table per Hierarchy


Summary l.jpg
Summary

ADO.NET Entity Framework provides a separation between the data and the entity

Supports different inheritance modelling patterns

Enables refactoring of data model


Summary20 l.jpg
Summary

http://www.vistasquad.co.uk

More information http://blogs.msdn.com/adonet/