Dae K. Jeon, Susan Darling Urban, Jami J. Shah, Hong Liu, Plamen Bliznakov, Mary Rogers. Metadata Extensions to an Object-Oriented Data Model for the Dynamic Capture of Engineering Design Histories. In Robert Meersman, Leo Mark, editors, Database Applications Semantics, Proceedings of the Sixth IFIP TC-2 Working Conference on Data Semantics (DS-6), Stone Mountain, Atlanta, Georgia, USA, May 30 - June 2, 1995. Volume 74 of IFIP Conference Proceedings, pages 573-600, Chapman & Hall, 1995.