Components of C# based 3 Tier Architecture

There are three main components of 3 tier architecture based on c# following are:

·         Data tier

·         Logic tier

·         Presentation tier

Where data tier has no proper direction to the presentation tier here logic tier is an intermediate tier which 

transfers data from data tier to presentation tier also responsible for to add defined business logic to data.

3-Tier Architecture Overview

Presentation tier:

It is the top most tier in which the users interrelate an application with the help of interface. Presentation Tier 

subjects Shared UI code, Code Behind and Designers used to symbolize information to the user. The main 

purpose of this tier is to translate the function into something that a user can easily understand

Logic tier:                                                             

Logic Tier works as the channel among Data Tier and Presentation Tier. This tier organizes the applications, 

processes instructions, makes logical choices, estimations, alsomakes calculations. It moves the processes 

data around further two layers.  Data passes over the Logic Tier before passing to the presentation Tier.

3-Tier Architecture

Data tier:

Data Tier is server which stores all the application’s data in the database.  Data tier contents include the 

Database tables, XML Files and other ways of storing Application Data.  From this tier the information is 

deposited or retrieved from the database. This information then moved back  to the logic tier for further 

processing and then back to user.