The management of changing types in an object-oriented database
OOPLSA '86 Conference proceedings on Object-oriented programming systems, languages and applications
Semantics and implementation of schema evolution in object-oriented databases
SIGMOD '87 Proceedings of the 1987 ACM SIGMOD international conference on Management of data
Class modification in the GemStone object-oriented DBMS
OOPSLA '87 Conference proceedings on Object-oriented programming systems, languages and applications
The Gem–Stone data management system
Object-oriented concepts, databases, and applications
Beyond schema evolution to database reorganization
OOPSLA/ECOOP '90 Proceedings of the European conference on object-oriented programming on Object-oriented programming systems, languages, and applications
Introduction to HOL: a theorem proving environment for higher order logic
Introduction to HOL: a theorem proving environment for higher order logic
Object-oriented analysis and design with applications (2nd ed.)
Object-oriented analysis and design with applications (2nd ed.)
The object database standard: ODMG 2.0
The object database standard: ODMG 2.0
SERF: schema evolution through an extensible, re-usable and flexible framework
Proceedings of the seventh international conference on Information and knowledge management
SERF: ODMG-based generic re-structuring facility
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Computer
Advanced Principles for Changing Schemas of Object Databases
CAiSE ;96 Proceedings of the 8th International Conference on Advances Information System Engineering
Automating the Evolution of Object-Oriented Systems
ISOTAS '96 Proceedings of the Second JSSST International Symposium on Object Technologies for Advanced Software
PVS: A Prototype Verification System
CADE-11 Proceedings of the 11th International Conference on Automated Deduction: Automated Deduction
Axiomatic semantics verification of a secure web server
Axiomatic semantics verification of a secure web server
Defining Metrics for Conceptual Schema Evolution
FoMLaDO/DEMM 2000 Selected papers from the 9th International Workshop on Foundations of Models and Languages for Data and Objects, Database Schema Evolution and Meta-Modeling
Engineering for Conceptual Schema Flexibility
RIDE '01 Proceedings of the 11th International Workshop on research Issues in Data Engineering
Modeling data warehouse schema evolution over extended hierarchy semantics
Journal on Data Semantics XIII
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The object model represents the core of an OODB system. Any change in the object model such as the addition of an association or aggregation relationship affects many sub-systems including the schema evolution system. Under the current tightly-coupled database architecture, updating the object model is an extremely expensive undertaking for a database vendor both in terms of time and resources. Adding a new construct to the object model impacts the schema evolution system in two ways: (1) the new construct requires a new set of schema evolution primitives to enable its evolution; and (2) existing schema evolution primitives must be modified to assure that they conform to the new constraints of the new object model. One traditional approach to address this is to manually change all affected software, a time consuming task. We present an alternate two-prong solution. We first decouple the constraints from the schema evolution primitives and secondly we provide a mechanism that allows for the declarative definition of both the primitives and the constraints. We show via examples that we can reduce the software evolution cost of the schema evolution component completely for semantic extensions to the object model and can partially reduce the cost for most other new modeling constructs.