Federated database systems for managing distributed, heterogeneous, and autonomous databases
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
Object orientation in multidatabase systems
ACM Computing Surveys (CSUR)
The object database standard: ODMG 2.0
The object database standard: ODMG 2.0
The Unified Modeling Language user guide
The Unified Modeling Language user guide
The OASIS multidatabase prototype
ACM SIGMOD Record
The object data standard: ODMG 3.0
The object data standard: ODMG 3.0
C++ Object Databases: Programming the ODMG Standard
C++ Object Databases: Programming the ODMG Standard
Using a Metadata Software Layer in Information Systems Integration
CAiSE '01 Proceedings of the 13th International Conference on Advanced Information Systems Engineering
Research in information managment at Dublin City University
ACM SIGMOD Record
Metadata usage in multimedia federations
MIS'02 Proceedings of the 2002 international conference on Metainformatics
Ubiquitous multimedia access with a multidimensional information browser
UCS'06 Proceedings of the Third international conference on Ubiquitous Computing Systems
Integrating heterogeneous multimedia resources
AIRS'05 Proceedings of the Second Asia conference on Asia Information Retrieval Technology
An ontology for integrating multimedia databases
KES'05 Proceedings of the 9th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part III
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A Federated Information System requires that multiple (often heterogenous) information systems are integrated to the extent that they can share data through views. One issue faced during the construction of federated view schemata is the continuous need to extract metadata from cooperating systems. This is more pressing in the case of federated multimedia systems where needless transfer of large binary objects affects system performance. Where participating systems employ an object-oriented common model to communicate, obtaining metadata is problematic due to the type and complexity of object-oriented metamodels. In the IOMPAR project, we specified and developed a high-level query interface for the ODMG schema repository in order to simplify this task for integration system engineers. This paper describes a schema repository query language which greatly reduces the efforts of integration engineers.