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ISKI
1994

Evolution towards, in, and beyond Object Databases

9 years 2 months ago
Evolution towards, in, and beyond Object Databases
There is a manifold of meanings we could associate with the term \evolution" in the database arena. This paper tries to categorize some of these into a unique framework, showing similarities and di erences. Among the topics touched upon are: extending traditional data models to become \object-oriented", migrating existing data to (not necessarily OO) databases, schema extension and modi cation in a populated database, integration of federated systems, and the use of \external services" to enrich DBMS functionalities. The following are presented in more detail: rst, we describe the necessity of object evolution over time second, we discuss schema evolution and third, we present evolutionary database interoperability by identifying di erent coupling levels. A few basic mechanisms, such as views (derived information) and a uniform treatment of data and meta data, and type and/or class hierarchies, allow for a formal description of (most of) the relevant problems. Beyond pre...
Marc H. Scholl, Markus Tresch
Added 10 Aug 2010
Updated 10 Aug 2010
Type Conference
Year 1994
Where ISKI
Authors Marc H. Scholl, Markus Tresch
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