The most valuable feature is the physical or visual representation of the database, showing the tables, the columns, the foreign keys, and the ability to generate DDL, so you can physically implement databases.
erwin Data Modeler offers advanced visualization and transformation of data diagrams into physical databases, aiding integration and consistency. It supports various databases and features reverse engineering and model comparison. Naming standards ensure accuracy, but some users report inconsistent reverse-engineering and support. The tool is complex, adds significant learning curve, has performance issues with large files, and is expensive, although it excels in version control and managing database changes.
