Evolving the implementation of ISA relationships in EER schemas

Authors:
Eladio Domínguez;Jorge Lloret;Ángel L. Rubio;María A. Zapata
Affiliations:
Dpto. de Informática e Ingeniería de Sistemas., Facultad de Ciencias. Edificio de Matemáticas, Universidad de Zaragoza, Zaragoza, Spain;Dpto. de Informática e Ingeniería de Sistemas., Facultad de Ciencias. Edificio de Matemáticas, Universidad de Zaragoza, Zaragoza, Spain;Dpto. de Matemáticas y Computación. Edificio Vives, Universidad de La Rioja, Logroño, Spain;Dpto. de Informática e Ingeniería de Sistemas., Facultad de Ciencias. Edificio de Matemáticas, Universidad de Zaragoza, Zaragoza, Spain
Venue:
CoMoGIS'06 Proceedings of the 2006 international conference on Advances in Conceptual Modeling: theory and practice
Year:
2006

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Abstract

One of the most severe problems related to database evolution is how to reflect in the data level the changes that have occurred in the conceptual schema of a database. This is specially relevant when evolution operations affect ISA relationships. In this paper we present our view of the evolution of ISA relationships, focusing on the artifacts that generate the sentences for changing the data in a consistent way.