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Entity evolution in IsA hierarchies

Autor
Olive, A.; Costal, D.; Sancho, Maria-Ribera
Tipus d'activitat
Article en revista
Revista
Lecture notes in computer science
Data de publicació
1999
Volum
1728
Pàgina inicial
62
Pàgina final
80
DOI
https://doi.org/10.1007/3-540-47866-3_5 Obrir en finestra nova
URL
https://link.springer.com/chapter/10.1007/3-540-47866-3_5 Obrir en finestra nova
Resum
In a conceptual schema that includes specializations and generalizations, and that allows multiple classification, an entity may be, at a given time, instance of one or more entity types. We call type configuration of an entity the set of entity types of which it is instance at some time. In this paper, we characterize the set of valid type configurations, taking into account the constraints defined by specializations and generalizations. We also analyze the problem of determining the valid evol...
Paraules clau
Conceptual schema, Entity type, Evolution constraint Type configuration, Multiple classification
Grup de recerca
IMP - Information Modeling and Processing