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