Till the year 2005, the pattern followed in all web applications was to manage one HTTP request per page. The NAVIGATION of one page to another page required loading the complete page. This would reduce the performance at a greater level.

Thus, there was a RISE in rich CLIENT applications which used to embed AJAX, XML, and JSON with them.

AJAX: Asynchronous JavaScript and XML (AJAX) is a technique to create fast and dynamic web pages. AJAX allows web pages to be updated asynchronously by exchanging small amounts of data behind the scenes with the server. This means that it is possible to update parts of a web page, without RELOADING the whole page.

Google Maps, Gmail, YouTube, and Facebook are a few examples of AJAX applications.

Ajax is based on the idea of sending HTTP requests using JavaScript; more specifically AJAX relies on the XMLHttpRequest object and its API to perform those operations.

JSON: JSON is a way to carry serialized JavaScript objects in such a way that JavaScript application can evaluate them and transform them into JavaScript objects which can be manipulated later.

For instance, when the user requests the server for an album object formatted with the JSON FORMAT, the server would return the output as following:

{'description': 'This is a simple demo album for you to test', 'author': ‘xyz’}

Now the data is a JavaScript associative array and the description field can be accessed via: data ['description'];

Till the year 2005, the pattern followed in all web applications was to manage one HTTP request per page. The navigation of one page to another page required loading the complete page. This would reduce the performance at a greater level.

Thus, there was a rise in rich client applications which used to embed AJAX, XML, and JSON with them.

AJAX: Asynchronous JavaScript and XML (AJAX) is a technique to create fast and dynamic web pages. AJAX allows web pages to be updated asynchronously by exchanging small amounts of data behind the scenes with the server. This means that it is possible to update parts of a web page, without reloading the whole page.

Google Maps, Gmail, YouTube, and Facebook are a few examples of AJAX applications.

Ajax is based on the idea of sending HTTP requests using JavaScript; more specifically AJAX relies on the XMLHttpRequest object and its API to perform those operations.

JSON: JSON is a way to carry serialized JavaScript objects in such a way that JavaScript application can evaluate them and transform them into JavaScript objects which can be manipulated later.

For instance, when the user requests the server for an album object formatted with the JSON format, the server would return the output as following:

{'description': 'This is a simple demo album for you to test', 'author': ‘xyz’}

Now the data is a JavaScript associative array and the description field can be accessed via: data ['description'];