SUN, is working on improving the MySQL workbench designer. We have been using workbench for OmegaWiki mark II and have been asking questions and making suggestions. It is with some satisfaction, that we find that we have been invited to the MySQL workbench beta program.
Currently our software uses some 30 business rules and these amount to some 6000 lines of code. They model a complex dynamic behaviour that is responsible for most on the "work behind the scenes". These triggers are currently not modelled by workbench, that can contain them, but not describe their behaviour from the analyst's point of view.
We are happy and satisfied being part of this program.