Client-Server architecture is 2-Tier architecture because the client does not distinguish between Presentation layer and business layer. The increasing demands on GUI controls caused difficulty to manage the mixture of source code from GUI and Business Logic (Spaghetti Code). Further, Client Server Architecture does not support enough the Change Management. Let suppose that the government increases the Entertainment tax rate from 4% to 8 %, then in the Client-Server case, we have to send an update to each clients and they must update synchronously on a specific time otherwise we may store invalid or wrong information. The Client-Server Architecture is also a burden to network traffic and resources. Let us assume that about five hundred clients are working on a data server then we will have five hundred ODBC connections and several ruffian record sets, which must be transported from the server to the clients (because the Business layer is stayed in the client side). The fact that Client-Server does not have any caching facilities like in ASP.NET, caused additional traffic in the network. Normally, a server has a better hardware than client therefore it is able compute algorithms faster than a client, so this fact is also an additional pro argument for the 3.Tier Architecture. This categorization of the application makes the function more reusable easily and it becomes too easy to find the functions which have been written previously. If programmer wants to make further update in the application then he easily can understand the previous written code and can update easily.

ASP.NET 2.0 Tutorials : Creating an ASP.NET 2.0 Application - In this tutorial you will learn how to Create an ASP.NET 2.0 Application, Examining the Interface, The Hello World Application, Designing Web Forms, The Embedded Web Server and Important folders in the ASP.NET 2.0 Applications.

A Photo album is a popular approach to share pictures among friends, members or even the whole world. In this tutorial, we will be looking at how to implement a photo album in ASP.NET 2.0 and MS SQL 2005.

In this function we'll run a query against Active Directory to obtain properties for the current account logged onto our application. First we'll specify an array of the properties we want to retrieve from AD, then pass it to our GetADsObject method (later in this article), and set authentication to AD in order to run and retrieve information from our query

ASP.NET 2.0 Free Training : Creating Web Wizards - In this tutorial you will learn about Rich Controls and Services, Creating Web Wizards, Working with the Wizard Control, Editing Wizard Steps, Adding a Completion Step, To edit the completion step, To show the user's data and Testing Wizard Control.