3 Tier Architecture in ASP.NET C#

For the beginners its an astonishing phrase "3 tier architecture". For me it was same as yours now. But when I get that it seems the easiest thing in .NET. Its all about creating instances for classes and using those instances call the methods present in the class.

Three important layer of this architecture are

1. Client Layer (class file of aspx page)
2. Business Logic Layer(BLL) (normal class file)
3. Data Access Layer(DAL) (normal class file)

 From front end we are getting the data and pass it through BLL and DAL to database. DAL is the end point where the application is connected with database.

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