Automatically assigned DDC number: 00574
Manually assigned DDC number: 00574

Number of references: 8

Title: Large-Scale Interoperability of Legacy Object Bases

Author:

Author:

Subject: Mark W. W. Vermeer,Peter M. G. Apers Large-Scale Interoperability of Legacy Object Bases

Description: In this paper, we present a truly object-oriented approach to large-scale interoperability of heterogeneous and autonomous databases. The problem with such an environment is that users typically have limited insight into the semantics of data defined in foreign databases. We show that existing schema integration techniques are not quite suited to such environments, due to difficulties in determining the real-world entity modelled by a class from its definition alone. In our approach, objects rather than classes are considered to be the fundamental unit of integration. The integrated class hierarchy is a result of the relationships between local and foreign objects rather than being defined explicitly. In other words, we compare class hierarchies based on the objects they classify only. We argue that in large-scale data interoperation, defining relationships between local and foreign objects is more applicable than defining relationships between classes. 1 Introduction Interoperation a...

Contributor: The Pennsylvania State University CiteSeer Archives

Publisher: unknown

Date: 1996-02-16

Format: ps

Identifier: http://citeseer.ist.psu.edu/171252.html

Source: http://wwwis.cs.utwente.nl:8080/isdoc/techreport/vermeer.ctit9517.ps.gz

Language: en

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