Help - Glossary - S - subclassResponsibility
This message subclassResponsibility is used in a superclass that must leave the implementation of some message to its subclasses. If activated it pops up a message 'My subclass should have overridden one of my messages.' - which serves as a reminder to the human user. An example of when and why this may happen is in the subclasses of Magnitude, that all implement < but in ways depending on what kind of object is compared.
Glossary - S