Rapid prototyping
Your workflow may require developing prototypes for client or stakeholder reviews or for vetting ideas with other designers and Flex developers before reaching the actual development phase of the project. A working prototype can help sell your ideas by showing functional design elements instead of static wireframes and written notations.
Flash Catalyst is an excellent tool for quickly generating a functional prototype without writing any code. Using the built-in wireframe components, the Flash Catalyst drawing tools, and early design comps, you can very quickly build a working model of your application.