... tool. All generated by RASD can be overwritten with using triggers (remember classical Forms).
The best thing is that the development cycle is really fast. The development process can be start with the business users (no or less documentation and no programming) with the combination of analytics or designers. In few minutes you can have working prototype for business users to discuss about their requirements.
For the first impression you can test it on http://bit.ly/RasdNo1