MVC, MVP and DCI... The DCI Architecture: A New Vision of Object-Oriented Programming

Check this article if you are interested in MVC (Model View Controller), MVP (Model View Presenter) and DCI (Data Context Interaction) patterns that help to solve
problems concerning separation of concerns mainly for systems with some user interactions (Web, GUI, ...).
http://www.artima.com/articles/dci_vision.html

Netbeans 6.8 available for downloading...

NetBeans IDE 6.8 offers best-in-class support for the entire Java EE 6 specification and the GlassFish Enterprise Server v3 platform. Simplify Java application development with Java EE 6 language features: less XML configuration and more POJO-like development; easily target and deploy to GlassFish v3.

NetBeans IDE continues to be the tool of choice for top development languages; this release includes new features and improved support for PHP 5.3 and the Symfony framework, the latest JavaFX SDK 1.2.1, C/C++, Ruby, Maven and more. Integration with Project Kenai, a collaborative environment for hosting open-source projects, now offers full support for JIRA, as well as improved issue tracker integration. And as always, the NetBeans Platform provides a rock-solid application framework that can save years of development time.

Supporting Java EE 6 improvements first, NetBeans IDE 6.8 boosts developer productivity and lets developers take advantage of today's latest language and platform features.