Effect of the quality of user documentation on user satisfaction with information systems
Information and Management
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
Conceptual database design: an Entity-relationship approach
Conceptual database design: an Entity-relationship approach
Database modeling & design (2nd ed.): the fundamental principles
Database modeling & design (2nd ed.): the fundamental principles
Understanding Quality in Conceptual Modeling
IEEE Software
Entity-relationship and object-oriented data modeling—an experimental comparison of design quality
Data & Knowledge Engineering
Object-oriented modeling and design for database applications
Object-oriented modeling and design for database applications
Supporting the maintenance and evolution of information models
Proceedings of the 2000 information resources management association international conference on Challenges of information technology management in the 21st century
Strategies for improving the quality of entity relationship models: a “toolkit” for practitioners
Proceedings of the 2000 information resources management association international conference on Challenges of information technology management in the 21st century
Data Quality for the Information Age
Data Quality for the Information Age
Fundamentals of Database Systems
Fundamentals of Database Systems
Structuring Primitives for a Dictionary of Entity Relationship Data Schemas
IEEE Transactions on Software Engineering
A Procedural Approach to Schema Evolution
CAiSE '93 Proceedings of Advanced Information Systems Engineering
CAiSE ;96 Proceedings of the 8th International Conference on Advances Information System Engineering
The Guidelines of Modeling - An Approach to Enhance the Quality in Information Models
ER '98 Proceedings of the 17th International Conference on Conceptual Modeling
So Far (Schematically) yet So Near (Semantically)
Proceedings of the IFIP WG 2.6 Database Semantics Conference on Interoperable Database Systems (DS-5)
Data & Knowledge Engineering - Special issue: Quality in conceptual modeling
A methodology for metadata modelling: depth for a flat world
DCMI '04 Proceedings of the 2004 international conference on Dublin Core and metadata applications: metadata across languages and cultures
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Enterprises need data resources that are stable and at the same time flexible to support current and new ways of doing business. However, there is a lack of understanding how flexibility of a Conceptual Schema design is demonstrated in its evolution over time. This case study outlines the evolution of a highly integrated Conceptual Schema in its business environment. A gradual decline in schema quality is observed: size and complexity of the schema increase, understandability and consistency decrease. Contrary to popular belief, it is found that changes aren't driven only by 'accepted' causes like new legislation or product innovation. Other change drivers are identified like error correction, changing perceptions of what the information need of the business is and elimination of derived data. The case shows that a real Conceptual Schema is the result of 'objective' design practices as well as the product of negotiation and compromise with the user community.