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# Descriptors and Inheritance

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Inheritance describes how a derived (child) class inherits the characteristics of its superclass (parent). You can use descriptors to describe the inheritance relationships between classes in relational, EIS, and XML projects.

In the descriptor for a child class, you can override mappings that have been specified in the descriptor for a parent class, or map attributes that have not been mapped at all in the parent class descriptor.

For more information, see "Understanding Descriptors and Inheritance".