The OO7 Benchmark represents a comprehensive test of OODBMS performance. In this report we describe the benchmark and present performance results from its implementation in four OODB systems. It is our hope that the OO7 Benchmark will provide useful insight for end-users evaluating the performance of OODB systems we also hope that the research community will nd that OO7 provides a database schema, instance, and workload that is useful for evaluating new techniques and algorithms for OODBMS implementation. Note on Version of January 21 This report is a modi ed version of the original OO7 technical report (the original report was written
Michael J. Carey, David J. DeWitt, Jeffrey F. Naug