Cardinality constraints have been a useful and integral part of conceptual database design since the original entity-relationship (ER) model proposed by Chen. Subsequently many papers discussing classification frameworks for cardinality constraints have been proposed. Completeness of such...

As large volumes of medical information are stored in digital format, maintaining data security and privacy becomes increasingly important. Our work considers the mechanism of fine-grained access control (FGAC). Current techniques suffer from the possibility of revealing too much information or...

Provenance is becoming increasingly important as more and more people are using data that they themselves did not generate. In the last decade, significant efforts have been directed toward developing generic, shared data provenance ontologies that support the interoperability of provenance...