Résumé:
The unified modeling language (UML) has become a standard object modeling and design language. Nevertheless, it needs other syntax and tools to capture more data semantics from the universe of discourse (U°D). This capture may be obtained goodly in ORM (Object Role Modeling), which build the information modeling from data use cases using a powerful procedure called CSDP (Conceptual Schema and relational database Design Procedure). To gain the power of this procedure in elaborating semantically expressive UML diagrams, we propose in this work, an adaptation of CSDP to UML using the domain ontology as complementary semantic source. This approach is called UDDP (Uml Diagram Design Procedure).