The .NET Framework Architecture

1
The .NET Framework Architecture

• A crash course on what the .NET Framework is about

2
Traditional Programming

• Compilation per Platform
• Multiple Versions of Compiled Code
• Targeted to Desktop PCs and Laptops

Source Code
Compiled Code
Compiled Code
Platform
Platform
Personal Computer
Personal Computer
3
.NET Concept

• Source Code partially compiled to MSIL
• Source code written in various languages
• MSIL runs on CLR an implementation of the CLS
  standard
• CLR available for various devices the use of
  the Compact Framework

Source Code
Compiled Code
Compiled Code
MSIL Code
CLR
Platform
Platform
Personal Computer
Personal Computer
.NET Enabled Devices
4
Benefits of .NET

• Single version of executable code for all
  platforms
• Not restricted to a single language to create a
  multi-platform solution
• The .NET Framework includes a Class library that
  is shared by all languages
• Full implementation and support of Object
  Oriented Principles

5
Requirements of .NET

• For client side applications (Windows
  Applications)
• .NET Framework needs to be installed on the
  client
• For server side applications (Web Applications
  and Web Services)
• .NET Framework needs to be only installed on the
  server

6
.NET Framework

• A language-neutral component library and
  execution environment
• Composed of
• Common Language Runtime
• .NET Framework Class Library
• Microsoft ADO.NET
• Microsoft ASP.NET

7
Common Language Runtime

• An execution environment providing
• Garbage collection
• Security
• Exception Handling
• Multithreading
• Memory Management
• Type Safety

8
.NET Framework Class Library

• A collection of reusable classes
• Classes grouped into logical collections, called
  namespaces like System.IO
• Classes grouped into physical collections, called
  assemblies like System.IO.dll

9
Microsoft ADO.NET

• A disconnected programming environment for
  working with data sources
• Ability to create a pseudo database with tables
  and relationships in your applications to hold
  cached copies of data from different sources
• Support for XML

10
Microsoft ASP.NET

• As easy to create Web Applications as it is to
  create Windows Applications
• Full power of a programming language compared to
  VBScript in ASP 2.0
• VB.NET
• C
• Others
• Many new features which previous ASP 2.0
  programmers had to code themselves