The notion AJAX has come to define a development framework which aims to improve
web page usability.
As you can see from the list above, none of the technologies used within AJAX are new.
What is new is the way these technologies are used together to create new types of web
applications that are much more responsive and intuitive than the existing ones. To
illustrate this, just have a look at Gmail and Google Maps. The user interfaces are quick
in providing the user with the desired information, while performing the minimum of
page reloads possible.
This new approach to user interaction and application responsiveness is part of a wider
technology trend, aimed at making the Internet more friendly and faster – Web 2.0.
