GWT vs Vaadin

Comparison Index	GWT	Vaadin
Introduction	GWT is a development toolkit for developing web application.	Vaadin is an open-source web framework for rich web applications.
Official Website	www.gwtproject.org.	www.vaadin.com
Technical Documentation	You can get technical documentation of GWT on www.gwtproject.org/doc.	You can get technical documentation of JSF on http://www. vaadin.com /docs
Developed By	GWT is developed by Google.	Vaadin is developed by Vaadin ltd.
Initial Release	GWT is initially released in May 16, 2006.	Vaadin is initially released in 2002.
License	GWT is licensed under Apache License 2.0.	Vaadin is licensed under Apache License 2.0.
Implementation Language	GWT is build on Java Programming Language.	Vaadin is build on Java.
Template Language	GWT has UIBinder as template language	Vaadin has HTML template language.
WYSIWYG-Editor	GWT has this editor.	Vaadin have this editor.
Framework	GWT has MVC Restlet framework.	Vaadin has MVC as framework.
Design Pattern	GWT has Model View Presenter Activities and Places.	JSF has MVC (Model View Controller), MVVM, MVP (Model View Presenter)as design pattern.
Code Generation	GWT has code generation.	Vaadin does not have code generation.
Dynamic Typing	GWT does not have dynamic typing.	Vaadin does not have dynamic typing.
Programming Paradigm	GWT has Object Oriented programming paradigm.	Vaadin have Object-oriented, Event-driven, Component-oriented, Functional programming paradigm.
Client Server Code reuse	GWT has Model View Controller.	Vaadin has MVC web services.
Cloud Platform Support	GWT support via Google App Engine.	Vaadin support via Jelastic.
Operating System Server	GWT has Cross platform.	Vaadin is JVM compatible.