Title :
Modeling the Mediated Schema Constraints
Author :
Casanova, Marco A. ; Lauschner, Tanara ; Leme, Luiz André P Paes ; Breitman, Karin K. ; Furtado, Antonio L. ; Vidal, Vânia M P
Author_Institution :
Dept. of Inf., Pontifical Catholic Univ. of Rio de Janeiro, Rio de Janeiro, Brazil
Abstract :
In this paper, we address the problem of modeling the constraints of a mediated schema. We argue that, from the point of view of an application that processes the results of queries defined over the mediated schema, the constraints should be modeled as the greatest lower bound of the constraints of the export schemas, after appropriate translation to a common vocabulary. This assures that the application will correctly interpret query results.
Keywords :
constraint handling; query processing; common vocabulary; export schemas; mediated schema constraints modeling; query results; Books; Conferences; Informatics; Logic; Modeling; Ontologies; Software tools; Systems engineering and theory; Testing; Vocabulary; Description Logics; Integrity constraint; mediated schema;
Conference_Titel :
Engineering of Computer Based Systems (ECBS), 2010 17th IEEE International Conference and Workshops on
Conference_Location :
Oxford
Print_ISBN :
978-1-4244-6537-8
Electronic_ISBN :
978-1-4244-6538-5
DOI :
10.1109/ECBS.2010.52
