Assisting System Evolution: A Smalltalk Retrospective
Robert Hirschfeld, Wagner Matthias, Kris Gybels · 2002
This paper illustrates selected Smalltalk mechanisms supporting software system evolution. System modifications considered are the renaming of a class, the removal of a class, and the change of the layout of a class. The mechanisms discussed are in use in Smalltalk implementations for a long time and have proven to be effective for unanticipated software evolution. This paper gives a retrospective overview in this context. 1