B/S architecture (Browser/Server) is a network model with
the growing up of Web and the Web Browser is one of the
most important applications of client. This model which
focuses the core part of system on the server not only unifies
the client but simplifies the development, maintenance and use
of system. Just install a Browser such as Internet Explorer, Fire
Fox on the client and the server installs the database. Browser
interacts to the database by the web server. The biggest
advantages of the B/S is that you can operate anywhere without
having to install any special software, as long as there is a
computer with Internet access or even a mobile phone
supporting the browser, and the client is zero-maintenance.
Using AJAX [2], the system greatly reduces the burden on the
server, increases the interaction and is capable of local realtime
refresh.