Applying the Theory

Applying the Theory
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应用理论

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发表时间:
2000
期刊:
影响因子:
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通讯作者:
B. Thalheim
B. Thalheim
中科院分区:
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文献类型:
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作者:
B. Thalheim

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HRM可用于数据库设计以及数据库中的高级编程。该模型足够通用,可以以简单的方式容纳建模范式,从而使它们易于理解和使用,即使是初学者。正如我们在完整性约束的情况下所证明的那样,该模型是有理论基础的。以同样的方式,操作的语义和数据库的行为可以使用演化代数方法来表达[GKS 91]。对于这个模型,一个简单的设计方法是可用的。此外,HRM方法可以下载到各种数据库系统的智能用户界面,并可以用于联邦数据库系统。在此基础上,可以发展出一套完善而强大的设计方法。
The HERM can be used for database design as well as for high-level programming in databases. The model is general enough to accommodate the modeling paradigms in a simple manner thus making them understandable and usable, even for beginners. The model is theoretically based, as we have demonstrated in the case of integrity constraints. In the same way the semantics of operations and the behavior of the database can be expressed using an evolving algebra approach [GKS91]. For this model a simple design methodology is available. Furthermore, the HERM approach can be downloaded to an intelligent user interface for a variety of database systems and can be used in federated database systems. Based on these achievements, a sound and powerful design methodology can be developed.