Annotation: A nice summary of the ideas presented in [skarra86management]. Ignores the issue of changes to the type hierarchy; just deals with version changes that add/remove/change methods and fields.
BibTeX entry:
@article{zdonik86maintaining, author = {Stanley B. Zdonik}, title = {Maintaining Consistency in a Database with Changing Types}, journal = {{SIGPLAN} Notices}, volume = {21}, number = {10}, pages = {120--127}, month = oct, year = {1986} }
Sameer Ajmani