Create an N-tier Architecture application.

In this Architecture we have multiple application . Where we bi-fercate a single application into multiple application .
Generally we use a single application to have the data model and the multiple application.
But for a N-tier architecture the application is divided into multiple application
like

DAL (Data Access Layer )
BAL (Business Access Layer )
Presentation Layer( It include MVC , ASP.Net )

Here we have a concept  in which we use a wrapper class where wrapper class represents the DataBase.

if we have a table in data base table like Employee the attributes are Emp_id , Emp_name , Emp_age , Emp_address

then you will have to make a class in your class library .

we have to make a GET or SET function with the use of encapsulation method .

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