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Convert Rational Rose to ERwin Data Modeler

Current version: 4.20

Important to know

The TOOLBUS Interface for AllFusion ERwin Data Modeler and Rational Rose enables the bi-directional exchange of UML Class Models and Data Models from Rational Rose with Logical and Physical Data Models in AllFusionERwin. The TOOLBUS Interface fully supports the Rose Data Modeler. With the TOOLBUS interface AllFusion E Rwin and Rational Rose can supplement each other in a coexisting way.

Conversion Process

Migration Paths: 1. Logical Data Models which were descri bed in ERwin can be converted to UML Class Diagrams to populate new Rose Models. 2. Physical Data Models from ERwin can be im ported into Rational Rose Data Modeler, from which UML Class Diagrams can be created by the Reverse Engineering function of Rational Rose. This function also enables the Reverse Engineering for Database Systems which are not support ed by Rational Rose, but by ERwin. 3. Logical an Physical Models from AllFus ion ERwin can be migrated to both UML Class Models and Data Models in Rational Rose, and the links between the UML objects (e.g. Classes) and the Data Model objects (e.g. Tables) are established. 4. UML Class Diagrams from Rational Rose are converted to Logical Data Models for ERwin, in order to facilitate using t he database design and t he SQL DDL generation functions of ERwin. 5. Data Models from Rational Rose can be converted to Physical Data Models for ERwin. Mapping Overview: 1. Bi-directional Migration of Rose Cla ss Models to ERwin Logical Data Models, and vice versa: • UML Class Diagrams are mapped to Subject Areas in ERwin, and vice versa. • UML Classes, Generalizations/Specializati ons, Associations, Attributes and Global Domains are mapped to Entities, Subtype Re lationships, Relationships, Attributes and Domains in ERwin, and vice versa. • The Types which are used in Rose to describe type and length of Attributes are mapped to datatypes of Attributes in ERwin, and vice versa. • If Tables and Columns are assigned for Classes and Attributes in the Rose Data Modeler, the Table and Column names are assigned as physical names for Entities and Attributes in ERwin. 2. Bi-directional Migration of Rose Data Models to ERwin Physical Models, and vice versa: • Databases, Tablespaces, Tables, Columns, Primary Keys, Foreign Keys, Indexes and Global Domains are migrated from Rose Data Models to Physical Models in ERwin, and vice versa. 3. Migration of ERwin Logical and Physical Models to Rose Class Models and Data Models, and vice versa: • Entities, Subtype Relationships, Relations hips, Attributes and Domains in ERwin are mapped to UML Classes, Generalizat ions/Specializations, Associations, Attributes and Global Domains. • Databases, Tablespaces, Tables, Columns, Domains, Primary Keys, Foreign Keys and Indexes are migrated from Physical M odels in ERwin to Rose Data Models. • The links between Classes and Tables, Attributes and Columns, and between Associations and Foreign Keys are established. Special Transformation Options: As an alternative to using Data Modeler, the TOOLBUS interface provides a number of special transformation options for the customization of the transformation rules according to the needs of the user: • Stereotypes can be used in Rational Rose to mark identifying Attributes, mandatory Attributes and identifying Associations. • For the mapping of Datatypes used in Rose (e.g. specified in C syntax) to the Datatypes which are defined for t he database systems s upported by ER win, a mapping editor is provided, which allows to specify the mapping according to the standards of the user. 3 Interface Technology: The TOOLBUS Interface uses t he methods provided by the Rose Extensibility Interface (REI) to r ead and update Rational Rose models. It reads and generates XML files for AllFusi on ERwin 4.x, and ERX files for ER win 3.5.2.


The TOOLBUS Interface for AllFusion ERwin and Rational Rose requires Microsoft Windows NT/2000/XP, and it supports AllFusion ER win 3.5.2, 4.0, 4.1 and 4.1.4, and Rational Rose 98i, 2000, 2000e, 2001, 2001A, 2002 and 2003.

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