The document discusses the Cairngorm framework, which is an open source framework for application architecture in Flex. It contains several key layers including the business layer, command layer, controller layer, model layer, view layer, and value object layer. The framework promotes separation of concerns between these layers and facilitates rapid development of Flex applications according to the model-view-controller pattern.

1. Cairngorm framework By zabi

4. MVC framework

9. Cairngorm framework.

12. Work flow..

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