Objecteering/UML associates Design Patterns and code generators to allow you to generate the code from the model's dynamic application. The State design pattern, developed by Gamma, is automated, so as to automatically transform the UML state diagram model into a class model. The code generator then transforms this class model into Java code. By applying the State design pattern, you can be sure of generating Java code which corresponds to the state diagrams, thereby guaranteeing a highly efficient result.