When designing the class hierarchy, ensure the serializer can handle objects of the supertype as well as of its subclasses.

We decided to supertype the Customer and Employee classes to avoid code duplication.

In the type hierarchy, supertypes determine the shared behavior and constraints of several derived classes.

After reviewing the class hierarchy, the maintainer supertyped the utility classes to streamline shared behavior.

Her supertypical response to criticism was to laugh it off and change the subject.

By supertyping the modules, the developer reduced code duplication across the system.