A comparative analysis of methodologies for database schema integration
ACM Computing Surveys (CSUR)
Federated database systems for managing distributed, heterogeneous, and autonomous databases
ACM Computing Surveys (CSUR) - Special issue on heterogeneous databases
Language features for interoperability of databases with schematic discrepancies
SIGMOD '91 Proceedings of the 1991 ACM SIGMOD international conference on Management of data
The functional data model and the data languages DAPLEX
ACM Transactions on Database Systems (TODS)
The Structural Model for Database Design
Proceedings of the 1st International Conference on the Entity-Relationship Approach to Systems Analysis and Design
M(DM): An Open Framework for Interoperation of Multimodel Multidatabase Systems
Proceedings of the Eighth International Conference on Data Engineering
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We present in this paper an extensible metalevel system, called M(DM), in which the syntax and the semantics of data models, schemas, and databases can be uniformly described. We show with examples how to derive in M(DM) the semantic equivalence (or lack thereof) of symbols across different reresentation systems. We argue that, because of the inherent incompleteness of legacy databases, semantic equivalence must in general be ascertained by additional a posteriori assertions that are external to the representation under consideration.