AJAX

The term AJAX was coined by Jesse J. Garrett in 2005. Ajax, which stands for Asynchronous Javascript And XML

Used for creating interactive web applications or rich Internet applications and Update pages “on the fly”. It is also used to retrieve data from the server asynchronously in the background.

Ajax is a way of developing Web applications that combines:

Using AJAX you can have the flexibilty of a browser, but the slickness and reduced network traffic of a smart client.

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Adobe Flex

Flex: Flex is the product of Adobe and it is free open source framework for creating and maintaining web applications. The work on the Flex SDK has been focused around three primary themes:

• Design in Mind: it provides a framework that helps you to support a new degree of lucidity, clarity, easily enabled with tools without many efforts.
• Developer Productivity: enhancing compiler functioning, performance and adding productivity to language features like data binding.
• Framework Evolution: by incorporating the new characteristics in flash the common use-case features are added

Flex is a way to develop Flash applications by programming. It includes a declarative XML language called MXML for laying out user interfaces, and a programming language called ActionScript with extra features like optional static type checking.

Flex applications compile directly into SWFs (Flash binaries), which are then Just-In-Time (JIT) compiled by the Flash runtime, for extra speed.

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Microsoft Silverlight

Microsoft Silverlight is a web application framework, but it highlights more on business applications and it is similar to Adobe Flash. Silverlight applications can be written in any .NET programming language. Silverlight.js and CreateSilverlight.js files are contained by Silverlight project ,these files initializes the Silverlight plug-in for use in HTML pages, a XAML file for the UI, and code-behind files for the application code.

Silverlight helps you create rich web applications that run on Mac OS, Windows, and Linux. Welcome to a new level of engaging, rich, safe, secure, and scalable cross-platform experiences.

Silverlight is a cross-browser, cross-platform (Mac OS, Windows and Linux) and cross-device browser plug-in that helps companies design, develop and deliver applications and experiences on the Web. Installed as a free browser plug-in approximately 4MB in size, in less than 10 seconds, Silverlight enables a new class of rich, safe, secure and scalable cross-platform experiences.

Silverlight installation is fast and effortless for customers on both Mac OS, Linux and Windows platforms today.

Silverlight uses the power of .NET and include-

1. over 100 controls,
2. rich layout and styling,
3. a powerful networking stack,
4. data access,
5. support for HD video........

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Adobe AIR

Adobe AIR is a cross-operating system runtime that lets developers combine HTML, Ajax, Adobe Flash®, and Flex technologies to deploy rich Internet applications (RIAs) on the desktop. Adobe AIR allows developers to use familiar tools such as Adobe Dreamweaver CS4, Flex Builder 3, Flash CS4 Professional, or any text editor to build their applications and easily deliver a single application installer that works across operating systems.

Adobe AIR allows web developers to use existing technologies to build and deploy rich Internet applications to the desktop.

* Cross platform application runtime
* Full control over visual look and feel
* Native integration with the desktop
* Leverages existing web technologies and programming languages

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