The PROMPT approach - references
You can find more information about PROMPT —the general approach and the interface itself—in the following papers:
N.F. Noy and M.A. Musen The PROMPT Suite: Interactive Tools For Ontology Merging And Mapping International Journal of Human-Computer Studies, 59/6 pp. 983-1024. Available as SMI technical report SMI-2003-0973
N.F. Noy and M.A. Musen Ontology Versioning as an Element of an Ontology-Management Framework IEEE Intelligent Systems, in press. Available as SMI technical report SMI-2003-0961
N. F. Noy, S. Kunnatur, M. Klein, M.A. Musen Tracking Changes During Ontology Evolution Third International Conference on the Semantic Web (ISWC-2004), Hisroshima, Japan (PDF)
N. F. Noy & M. A. Musen PromptDiff: A Fixed-Point Algorithm for Comparing Ontology Versions. In the Proceedings of the Eighteenth National Conference on Artificial Intelligence (AAAI-2002), Edmonton, Alberta, August 2002. Available as SMI technical report SMI-2002-0927 (2002)
N. F. Noy & M. A. Musen Anchor-PROMPT: Using Non-Local Context for Semantic Matching. In the Proceedings of the Workshop on Ontologies and Information Sharing at the Seventeenth International Joint Conference on Artificial Intelligence (IJCAI-2001), Seattle, WA, August 200. Available as SMI technical report SMI-2001-0889 (2001)
N. F. Noy & M. A. Musen. PROMPT: Algorithm and Tool for Automated Ontology Merging and Alignment In the Proceedings of the Seventeenth National Conference on Artificial Intelligence (AAAI-2000), Austin, TX. Available as SMI technical report SMI-2000-0831 (2000)
N.F. Noy and M.A. Musen Specifying Ontology Views by Traversal Third International Conference on the Semantic Web (ISWC-2004), Hisroshima, Japan (PDF)