Specialization of Classes

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Specialization, Extension, and Inheritance - slide 2 : 40

Specialization of Classes

Classes are regarded as types, and specializations as subtypes

Specialization facilitates definition of new classes from existing classes on a sound conceptual basis

If a class B is a specialization of a class A then

The instances of B is a subset of the instances of A
Operations and variables in A are also present in B
Some operations from A may be redefined in B