Schema evolution and integration

Enterprise integration by market-driven schema evolution

The way how enterprises are organizing their processes is ultimately dictated by the requirements of their markets. Enterprises serving slowly changing market prefer a functional decomposition of their work force into departments with information flows along the hierarchy. Quickly changing markets require quick redefinition of implemented functions and information flows in the distributed infor...

Ontology and Schema Evolution in Data Integration: Review and Assessment

The development of new techniques and the emergence of new highthroughput tools have led to a new information revolution. The amount and the diversity of the information that need to be stored and processed have led to the adoption of data integration systems in order to deal with information extraction from disparate sources. The mediation between traditional databases and ontologies has been ...

Desktop Schema Evolution - Editing Schema

In this paper we describe a general framework to do schema evolution. The main idea is desktop, the conceptual workspace to edit schemes. The evolution to be discussed is captured from several points of view; (1) Schema translation causes changing database states. (2) Three kinds of evolutions, type evolution, predicate evolution and complex type evolution are proposed. (3) Completeness propert...

Schema Refinement and Schema Integration in Object-oriented Databases Schema Reenement and Schema Integration in Object-oriented Databases

This report presents a formal approach to support schema integration in object-oriented databases. The basis of the approach is a synthetic subclass order to compare classes. Classes are integrated in a natural way using a join operator w.r.t. the subclass order. In contrast with existing literature, our subclass order compares classes not only by their attributes, but also by the behaviour of ...

Schema Evolution and Instantiation