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This page discusses technologies for implementing user interface



"it was really a pain to maintain because of the extra layer of client-side JavaScript code. I couldn't say that our JavaScript code was badly structured. Maybe we are not smart enough. We just felt spending too much time on technical aspects and too littile on developing our application's features."

* The main point here was that in GWT (and SmartGWT) the size of the client-side grows when the application grows. In Vaadin client-side size is static and lean even for huge applications.

* Apache licence

* GWT based (client side widgets)

* Community (addons!)

* Matt Raible: Top 5 UI framework (Grails,Rails incl)


Vaadin touch


ExtJS: 500-600$/dev