A rich API Used for programming of single-page Web applications and Web applications synchronicity. Models and Views - The single most important thing that Backbone can help you with is keeping your business logic separate from your user interface. Collections - A Collection helps you deal with a group of related models, handling the loading and saving of new models to the server and providing helper functions for performing aggregations or computations against a list of models. View Rendering - Each View manages the rendering and user interaction within its own DOM element. If you're strict about not allowing views to reach outside of themselves, it helps keep your interface flexible — allowing views to be rendered in isolation in any place where they might be needed. Routing with URLs - In rich web applications, we still want to provide linkable, bookmarkable, and shareable URLs to meaningful locations within an app. Use the Router to update the browser URL whenever the user reaches a new "place" in your app that they might want to bookmark or share. Conversely, the Router detects changes to the URL — say, pressing the "Back" button — and can tell your application exactly where you are now.

* RAP lets you develop modern web UIs with a real widget toolkit with SWT API, which includes powerful features like drag & drop, loading data on demand, inline editing, and drawing. * RAP runs in all relevant web browsers, without any add-ons required. Many advanced features like gradients are rendered even in browsers without CSS3 support. * RAP uses standard servlet technology and runs on any JEE servlet container. It integrates well with OSGi, but can also be used stand-alone. * RAP applications are written in Java, and you have the full power of Eclipse's development tools at hand. * With RAP, you can re-use your code for different target platforms. Even code that has been written for Eclipse RCP can run in a web browser.