Framework is a set of conceptual structure and guidelines used to build something useful.

Frameworks are software that are developed to build applications.

• Framework is collection of tools designed to help to create your project so you do not need tostart from scratch.

Framework may include predefined classes functions that can be used to process input, manage devices,interact with system architecture

The .NET framework provides and environment for building, deploying and running web services and other applications.

It consist of three distinct technology

1]Common language runtime

2]framework base classes

3] user and program interfaces.

1] CLR

• CLR is responsible for managing the execution of code written in any of the supported languags
• It is a program execution engine that loads and execute the program.
• It converts the program in to native code.

• It acts as an interface between the framework and operating system

• It does exception handling memory management and garbage collection

• It provides security type safety interoperability and portability.

2] base classes provides basic data types, collection classes and other general classes for use by c# andother .net languages.

3]Top layer contains a set of classes for developing web services and to deal with the user interfaces.