SAC
2006
ACM
13 years 4 months ago
2006
ACM
Integrity constraints (ICs) play a key role in the definition of conceptual schemas. In the UML, ICs are usually specified as invariants written in the OCL. However, due to the hi...
DOCENG
2008
ACM
13 years 6 months ago
2008
ACM
As XML has emerged as a data representation format and as great quantities of data have been stored in the XML format, XML document design has become an important and evident issu...
ER
1993
Springer
13 years 8 months ago
1993
Springer
Two major problems in schema integration are to identify correspondences between different conceptual schemas and to verify that the proposed correspondences are consistent with th...
UML
2004
Springer
13 years 9 months ago
2004
Springer
Any implementation of an information system must ensure that an operation is only applied if its execution does not lead to a violation of any of the integrity constraints defined ...
ER
2007
Springer
13 years 10 months ago
2007
Springer
Frequently the behaviour of an information system is functionally correct, but it does not meet some quality criteria, such as completeness, consistency, and usability. One way to...