Using Data Modeler

Advantages of Rose UML and Data ModelingRose UML offers distinct advantages when data modeling. These advantages are theintroduction of the data model diagram to Rose’s set of UML diagrams, reusability ofdata modeling elements, and Data Modeler’s engineering capabilities.TheDataModelDiagramFor each type of development model—that is business models, application models,and data models—Rose uses a specific type of diagram.■■■Business models—Use case diagram, activity diagram, sequence diagramApplication models or logical data models— Class diagramPhysical data models—Data model diagramAn advantage the data model diagram offers database designers is the ability tomodel using terms and structures already familiar to them, such as columns, tables,and relationships. Also, the data model diagram completes Rose’s set of diagrams tomodel the whole system, closing the chasm in development between databasedesigners and application developers.The data model diagram visually represents the physical data model, so to work inyour physical data model you must create a new or activate an existing data modeldiagram. Rose provides this additional diagram to reduce the confusion betweenobject model and data model items, and to support features unique only to DataModeler such as supported DBMSs, key migration, and schema migration.Advantages of Rose UML and Data Modeling 7