Table of contents : The promise of distributed computing and the challenges of legacy systems....Pages 1-28 Object oriented requirements capture and analysis — The ORCA project....Pages 29-41 A model for versioning of classes in object-oriented databases....Pages 42-58 A Storage manager for the Hypernode model....Pages 59-77 Views and formal implementation in a three-level schema architecture for dynamic objects....Pages 78-95 The meiko computing surface: A parallel & scalable open systems platform for Oracle....Pages 96-114 A study of a parallel database machine and its performance the NCR/Teradata DBC/1012....Pages 115-137 Control of a large massively parallel database machine using sQL catalogue extensions, and a DSDL in preference to an operating system....Pages 138-155 Integration of modal logic and the functional data model....Pages 156-174 The Raleigh activity model: Integrating versions, concurrency, and access control....Pages 175-191 A graphical data modelling program with constraint specification and management....Pages 192-208 Association merging in a schema metaintegration system for a heterogeneous Object-Oriented database environment....Pages 209-226 Generating active rules from high-level specifications....Pages 227-243 Employing integrity constraints for query modification and intensional answer generation in multi-database systems....Pages 244-260