UML Modeling Techniques > Data modeling > Storage Mapper > How to... > Choosing mapping options for classes (Storage Mapper)
  
Choosing mapping options for classes (Storage Mapper)
To choose the mapping options for a class:
1. Display the classes in the mappings column of the Storage Mapping dialog.
2. Double click the required class name in the mappings column - the properties for Class dialog is displayed.
You can:
• choose to include the class in the mapping.
• specify the generalizations as_1:1_relationships, roll them up into super-classes, or roll them down into sub-classes.
• choose to merge 1:1 relationships into the same table.