gmodeler by grant skinnner is a way to plan out classes for a coding project. Its really helpful as it shows all the classes and their relationships through a diagram.
If you are thinking of starting an OOP Flash project from scratch, you must seriously consider planning and organizing your thoughts with the help of UML. The Unified Modeling Language has been around for less than a decade and has become one of the main
gModeler is a free online UML diagramming and documentation tool, targetted at developers working with ECMA 262 languages such as FlashMX's Actionscript, and Javascript. In addition to it's diagramming capabilities, it exports HTML documentation, FlashMX