Showing posts from October 13, 2012


Click Here to download sample project A three tire architecture application is divided into three platforms namely Data Access Layer, Business Layer and Presentation Layer. Data Access Layer (DAL): This layer performs the operations related to data transfer between business layer and database. Business Layer (BL): This layer performs business logics if necessary or else it just transfers data between the presentation layer and data access layer. Presentation Layer: This layer is used to display the related data to the users.  This layer gets or supplies necessary data to the business layer and presents it to the user with the respective presentation technology. Advantages of Three tire Architecture : Code Reusability – After writing DAL or BL these logics can be used for any kind of technologies in dotnet.   For example, if you are developing a social networking site in three tire architecture and if you choose as your front end technology then the