Three tire Architecture

 3 tire Architecture 

  1- 3 tire architecture is used to create a layer for managing data transformation 

  2- There are following layer is used to create 3 tire architecture

      i. Bussiness object layer 

     ii. bussiness logic layer 

    iii. data access layer


1.Bussiness object

 create a variable


2.Bussiness logic 

  these layer directly connect to aspx page


3.Data access layer 

  only use database programming 


Q.How to create layer 

A- step 1: go to the solution explorer

   step 2: right click on solution

   step 3: add new project  

   step 4: select class library

   step 5: create class file in each layer

 In this concept create all types of classes related to data base structure 


How to create class

 BussinessObejct- userBO

 Bussinesslogic- userBL

 Dataaccess- userDA

step: right click of the layer 

step: add reference to each layer 


1-DataAccess layer-> reference bussiness object

     step: right click of the layer and select add reference

2-BussinessLogic layer-> dataaccess,Bussinessobject

3-project folder -> bussiness logic and bussines object 








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