Holland, DavidBraun, UriMaclean, DianaMuniswamy-Reddy, Kiran-KumarSeltzer, Margo2012-05-152008Holland, David A., Uri Braun, Diana Maclean, Kiran-Kumar Muniswamy-Reddy, and Margo I. Seltzer. 2008. Choosing a data model and query language for provenance. In Provenance and Annotation of Data and Processes: Proceedings of the 2nd International Provenance and Annotation Workshop (IPAW '08), June 17-18, 2008, Salt Lake City, UT, ed. Juliana Freire, David Koop, and Luc Moreau. Berlin: Springer. Special Issue. Lecture Notes in Computer Science 5272.978-3-540-89964-80302-9743http://nrs.harvard.edu/urn-3:HUL.InstRepos:8747959The ancestry relationships found in provenance form a directed graph. Many provenance queries require traversal of this graph. The data and query models for provenance should directly and naturally address this graph-centric nature of provenance. To that end, we set out the requirements for a provenance data and query model and discuss why the common solutions (relational, XML, RDF) fall short. A semistructured data model is more suited for handling provenance. We propose a query model based on the Lorel query language, and briefly describe how our query language PQL extends Lorel.en-USMonograph or Book2012-05-15