Rails GUI Development with Ext JS

This document discusses the development of rich graphical user interfaces (GUIs) using the Ext JS framework in conjunction with Ruby on Rails. It highlights the ease of using pre-built GUI components, the integration of Rails with Ext JS for handling data through JSON or XML, and provides detailed instructions on setting up a Rails application with Ext JS, including code examples for model, controller, and view. The conclusion emphasizes the benefits of a thin Rails backend while leveraging extensive JavaScript functionality.