Annotation: A survey of techniques for supporting object-oriented views. Relevant to upgrades because simulation objects for different versions act like different views on the state of a node.
BibTeX entry:
@inproceedings{wrembel98object, author = {Robert Wrembel}, title = {Object-Oriented Views: {Virtues} and Limitations}, booktitle = {13th International Symposium on Computer and Information Sciences ({ISCIS})}, address = {Antalya}, month = nov, year = {1998}, url = {http://citeseer.ist.psu.edu/524487.html} }
Sameer Ajmani