Web applications are used by industries or companies to promote their business and the scenario today is that every type of business needs their own web applications. The web applications include such simple tasks as filling a form for certain facility as net banking to giving some orders or working on some projects.

The web applications are built according to the user requirements so they are beneficial as they fit well into the environment and can be expanded whenever required according to the usage. Web applications are easy to use and are more presentable and attractive than the traditional softwares.The web applications are getting popular due to the advantages they provide to their users. The use of web application does not require any additional hardware or software configuration for its working. The data security is there as it is stored in one central server and not individual computers. A custom build web application certainly costs less than the off the shelf applications and provides greater efficiency and reduced maintenance. So the cost of supporting and providing services to the customers is reduced. The customers also benefit by these applications by getting the convenience to interact with the company at any time of the day or night. Then it provides improved sales with lower sales cost to the company and at the same time good communication with the customers and higher level of interactivity with the clients,

The development of new web technologies, languages and procedures has given way to the development of new dynamic applications. The growth of web 2.0 trends has lead great influence on the web industry. These facilitate the programs to be made easier and more functional thus enriching user experiences. The development of AJAX (Asynchronous Javascript and XML ) has lead to greater web interactivity in which changes are made to individual user interface components rather than refreshing the whole page. The future of web application is enormous with the work going on in the area for semantic web and artificial intelligence.