Integration of heterogeneous data repositories by using object-oriented views

[1991] Proceedings. First International Workshop on Interoperability in Multidatabase Systems Pub Date : 1991-04-07 DOI:10.1109/IMS.1991.153681

E. Bertino

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引用次数: 73

Abstract

A discussion is given on how object-oriented techniques can be used to solve the problem of integrating semantically heterogeneous schemas. The author defines an object-oriented view mechanism which allows integrated views to be defined starting from local views which are expressed in a uniform object-oriented data model, but still semantically heterogeneous. A view model based on the object-oriented paradigm has several advantages, since it is a semantically rich model and allows object behavior to be described by using methods. This allows several semantic conflicts to be solved on a structural basis, that is, the model naturally supports the structural mapping approach traditionally used in heterogeneous distributed database systems. Moreover, the usage of methods allows complex mapping to be defined, when the structural mapping cannot be used. The proposed view model uses mechanisms for method combination similar to those defined in some object-oriented programming languages. These mechanisms allow an integrated view to reuse and extend methods defined for the various local views.<>

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通过使用面向对象的视图集成异构数据存储库

讨论了如何使用面向对象技术来解决集成语义异构模式的问题。作者定义了一个面向对象的视图机制，允许从本地视图开始定义集成视图，这些视图用统一的面向对象数据模型表示，但在语义上仍然是异构的。基于面向对象范例的视图模型有几个优点，因为它是一个语义丰富的模型，并且允许使用方法来描述对象行为。这允许在结构基础上解决几个语义冲突，也就是说，该模型自然地支持传统上在异构分布式数据库系统中使用的结构映射方法。此外，当不能使用结构映射时，方法的使用允许定义复杂映射。建议的视图模型使用类似于某些面向对象编程语言中定义的方法组合机制。这些机制允许集成视图重用和扩展为各种本地视图定义的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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[1991] Proceedings. First International Workshop on Interoperability in Multidatabase Systems

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