Before getting started, you should understand the basics of several key technologies:

• NetBeans Platform - GreenScape is built upon the NetBeans 6.5 RCP platform. Developers are expected to be familiar with its API.
• Apache Derby - The local data storage uses Derby as an embedded database.
• Hibernate - Hibernate is used as the persistence API for managing user objects.
• SwingX & SceneGraph - This 2 user interface libraries are provided that can be used in a plugin.
• Substance Look & Feel - Substance look and feel is provided with the runtime platform. Developers are encouraged to adhere to this library when designing UI screens
• Google Data API - The Google Data API Java client library is provided as a separate wrapper library project.