Mesodata Modelling: Engineering Domains for Attribute Evolution and Data Integration - Couverture souple

De Vries, Denise

 
9783639249682: Mesodata Modelling: Engineering Domains for Attribute Evolution and Data Integration
Couverture souple
ISBN 10 : 3639249682 ISBN 13 : 9783639249682
Editeur : VDM Verlag Dr. Müller, 2010

Synopsis

Information systems have evolved from simple file processing systems to powerful database systems. Relational Databases put the layout and form into the unchanging metadata and gave us ?record once? systems. Unfortunately, the ?real world? upon which databases are modelled constantly changes. These changes may affect the schema for a variety of reasons. Different formalisms have been developed to deal with schema changes aiming to preserve information capacity and semantic correctness. Schematic conflicts occur which must be resolved. Data integration or conversion remains a partially resolved issue. This book introduces a three-level architecture for RDMS with an interface, named the mesodata layer, between data and metadata for complex domains. The mesodata layer provides complex structures in which to store domain values and their inter-relationships as well as supplying the ?intelligence? required to manipulate them. The domain structures enable different orderings for enhanced querying and information retrieval. This approach should interest database modellers who manage changes to a database, such as structural change, semantic change and constraint change.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Information systems have evolved from simple file processing systems to powerful database systems. Relational Databases put the layout and form into the unchanging metadata and gave us ?record once? systems. Unfortunately, the ?real world? upon which databases are modelled constantly changes. These changes may affect the schema for a variety of reasons. Different formalisms have been developed to deal with schema changes aiming to preserve information capacity and semantic correctness. Schematic conflicts occur which must be resolved. Data integration or conversion remains a partially resolved issue. This book introduces a three-level architecture for RDMS with an interface, named the mesodata layer, between data and metadata for complex domains. The mesodata layer provides complex structures in which to store domain values and their inter-relationships as well as supplying the ?intelligence? required to manipulate them. The domain structures enable different orderings for enhanced querying and information retrieval. This approach should interest database modellers who manage changes to a database, such as structural change, semantic change and constraint change.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag Dr. Müller
Date d'édition
2010
Langue
anglais
ISBN 10 
3639249682
ISBN 13 
9783639249682
Reliure
Broché
Nombre de pages
160
Coordonnées du fabricant
non disponible
Personne responsable
non disponible