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ASP.NET 3.5 Application Architecture and Design

You're reading from   ASP.NET 3.5 Application Architecture and Design Build robust, scalable ASP.NET applications quickly and easily.

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Product type Paperback
Published in Oct 2008
Publisher Packt
ISBN-13 9781847195500
Length 264 pages
Edition Edition
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Author (1):
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Vivek Thakur Vivek Thakur
Author Profile Icon Vivek Thakur
Vivek Thakur
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Chapter 3. ER Diagrams, Domain Model, and N-Layer Architecture

In the last chapter, we saw the basic layering of the monolithic 1-tier 1-layer architectural style in action, with the UI layer having code-behind classes as the sub-layer. This 1-tier 1-layer architecture is the default style in ASP.NET and Visual Studio 2005/2008. To overcome the limitations of this style, we can further break the application code into n-layers, where the number "n" actually depends on the project requirements.

In this chapter we will:

  • Learn the 2-layer style

  • Understand ER diagrams

  • Understand what a domain model is, and what UML relationships are

  • Learn the 3-layer style

  • Learn about object data source controls

Let's revisit the 1-tier ASP.NET application configuration described in the last chapter.

Note

Note that the application as a whole including database and client browser is three tier.

As mentioned in the last chapter, we can call this 1-tier architecture a 3-tier architecture if we include the browser and database...

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