Rapise is a next generation software test automation tool that leverages the power of open architecture to improve application quality and reduce time to market. Using advanced technology and an extensible architecture, Rapise can handle your software application and cross-browser testing needs

The Cairngorm Microarchitecture is a lightweight yet prescriptive framework for rich Internet application (RIA) development. Cairngorm is an implementation of design patterns that the consultants at Adobe Consulting have successfully taken from enterprise software development (with technologies including J2EE and .NET) and applied rich Internet application development using Adobe Flex.

PureMVC is a lightweight framework for creating applications in ActionScript 3, based upon the classic Model-View-Controller design meta-pattern. This free, open source framework does not depend on any Flash, Flex or Apollo classes, and is therefore suitable for architecting applications on any platform running AS3.

ActionScript 3 is a strongly-typed, fully object-oriented language based on the same standard as JavaScript (ECMAScript), though AS3 implements a more current edition (Edition 4). It is the internal scripting language for Adobe Flash, Flex, and Apollo, and is currently being integrated into the FireFox browser by the Mozilla Foundation as the next generation of JavaScript. From the beginning it was known that due to its pattern-based nature, nearly any OOP language could be targeted for implementation. Currently there are ports to AS2, ColdFusion, C#, Java, and PHP in development.

Model-Glue: Flex brings implicit invocation, Model-View-Controller design, and cleaner, less repetitive integration with backend services to Flex 2.0 and AIR applications. It shuns repetitive, boilerplate code in favor of helper classes and expressive APIs.

The ServeBox Foundry ( sbasfoundry ) is an ActionScript 3 / Java framework designed for Flex 2 applications development. Its design is based on several design patterns, and includes tools built to resolve some of the recurrent Flex 2 development issues : Model-View sync, screen-browsing, Access-Control Lists (currently in development), localization and labels externalization, etc. Originally, we (ServeBox) created it to respond to our customers development needs. It is now available as an open-source project under Apache-style license, so you can use it for commercial and/or open-source projects.

Guasax is an ease of use programming framework to provide ordered and scalable Flex applications. Life cycle of guasax framework is based in the MVC pattern to take on our program actions. One uniqueness of Guasax is that they use a XML file to configure the actions in the business logic, which reassemble some aspects of Java Struts framework. Guasax can be extended by developing guasax components.

ARP is an Open Source Pattern-Based Rich Internet Application (RIA) Framework for the Flash Platform. ARP currently supports Macromedia® Flash® and Flex™-based RIA Development in ActionScript 2 and ActionScript 3.

Flest is an ActionScript3 / Flex application framework for building enterprise level RIAs. It uses such design pattern as Controller, Factory, Command, etc. High efficiency, simplicity and practicality were set as its mandatory design features. Flest Framework was designed and built to be a lightweight and easy to use toolset that helps to structure the deveopment environment on the one hand, and gives a developer maximum freedom in making his/her own decisions on the other.

EasyMVC is an event driven MVC framework which focuses on flexibility while not getting in the developers way. Whether you are new to flex or have been developing for a while, easyMVC can help you get organized quickly. Because of the low configuration and lack of boilerplate code, you can be up and running with a well organized site in very little time.

AIR GEAR is an Eclipse Plug-In which provides RAD development for Adobe AIR. AIR GEAR provides following features:
* AIR project creation wizard
* WYSIWYG GUI designer for Flex
* Incremental builder for mxml files
* ActionScript editing view
* AIR application launcher