Sunday, August 12, 2012

Ajax Applications Development


AJAX has not only sprouted but has got hold roots in the development of dynamic web applications, which reflects changes in micro seconds thereby saving reloading time, improving usability, providing faster accessibility, to more web pages in less time. AJAX stands for Asynchronous JavaScript and XML is the term whispered from almost every software developer mind and its waves are touching the network boundaries.

Ajax Applications Development has provided breakthrough in the development of web applications. AJAX is a new way to define technology shifting web pages from static HTML pages to promote Java Script and CSS enabled dynamic pages. AJAX is also called a free framework for quick creation of interactive multi-platform Web experiences. This application has changed the face of the web and has solved the main problem of web application reloading.

Conglomeration of many technologies to form a more useful, dynamic, strong technology - AJAX accelerated web world. Ajax incorporates standards-based presentation using XHTML and CSS, dynamic display and interaction with Document Object Model, interaction and data manipulation using XML, asynchronous data retrieval using XMLHttpRequest, and JavaScript binding everything together. AJAX uses Java script, HTML pages to make asynchronous call to the server that collects information that can be formatted as HTML, text, XML or JavaScript Object Notation (JSON). To modify the Document Object Model (DOM) of HTML page using java script this content. Load content on demand for various applications complex web has improved the use of bandwidth by reducing the consumption of bandwidth for complex functions.

AJAX is based on a different architecture to support server-side interaction model. Intermediate level of application, an Ajax engine (written in Java Script), is added between user and server that allows user interaction with the application asynchronously. This new approach has many advantages over static web applications, leading to the AJAX features are: Real-time form validation with server-side validation code. Auto-completion of the form fields, improved interaction and control with the use of advanced controls available. Mix of content from a third party application with the application is easily possible. Google Maps, Flickr, Orkut, Google Suggest are examples of AJAX application development.

Despite a myriad of benefits, the development of AJAX applications is in front of a few major challenges: the knowledge is needed to understand the Ajax update function is not as easy to develop Ajax that provides for the execution of code complex java script on the client. Another challenge is the XMLHttpRequest object is not part of the specific Java script, so that makes it difficult to adapt for older browsers. While browser add-ons have made it easier to debug, the processing logic built into the client and the server makes it difficult to debug the application. Easy access to data have provided a simple way for plagiarism, excluding the reserved sections. Identify particular state of application is difficult, this creates problems for the user to favorite was specific application. In addition, iframe element used to populate the browser history is not recommended by the W3C. Web sites that use Ajax applications typically are not search engine friendly. Ajax java script code that has compatibility issues with different browsers. Web analytics track record is littered with websites that use Ajax technology, as each event is tracked by Google Analytics.

Careful consideration is needed before implementing Ajax technology for your website to overcome some of its fallback.

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