WEB BASED SYSTEMS
With the advent of the web, the trend is towards using the intemet and the intranet for internal and external applications. It follows that all database systems be fully web-enabled or at least contain Web-based components.
The architecture of a web-based database system involves the following software components:
1) Web Browser: Web browser connects the user to the Internet
2) Web Server: The web server receives requests from a remote Web Client. The Web Server simply retrieves the page defined by its URL and sends it to the Web Browser. Often, the Web Browser has to execute a program in order to assemble a dynamic page. In this case, the Web Browser has to access data in a DBMS
3) Application Servers: Application servers are optional but are recommended for the Web architecture. They facilitate the execution of programs and include security, session management, etc.
4) Software Application: Software application interfaces with the Application Server to provide the pages.
5) DBMS: DBMS interfaces with the Application Server to provide the data needed
