http://www.macbytes.com/link.php?sid=20090304145506

Excel Software is shipping MacA&D 3.0 for system models with simulation, requirements management, software design, code generation, models from code and project reports. MacA&D has enhancements to the user interface, integrated help, manual set, report scripting engine, installer plus new features to add, remove, duplicate and individually lock or unlock editing on diagrams.