A stepwise approach to database design

ACM-SE 14 Pub Date : 1976-04-22 DOI:10.1145/503561.503571
J. Fry, Beverly K. Kahn
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引用次数: 4

Abstract

As evidenced by the high cost of processing data, an important problem facing the Database Administrator is the effective design of the database. Database design is a complex problem that not only pervades the data processing function but eventually the entire enterprise or agency.Recent results indicate that an effective database design must be based on both processing and non processing-oriented information represented in an information structure perspective and usage perspective. Utilizing a database management system as the vehicle for processing the data and a data reorganization function to integrate these perspectives, a three step design approach is proposed:Step 1. Design for the information structure perspectiveStep 2. Design programs to be independent on the logical structure and augment with a statistics gathering mechanismStep 3. Reorganize database from the statistics gathered from usage perspectiveThis Stepwise approach facilitates an incremental design methodology in which the logical data structure form the information perspective is adapted to statistics on the usage perspective. It also provides an integrating mechanism for combining the information structure perspective and the usage perspective. Such a methodology, however, is based on two important presuppositions: i) the information structure perspective is a reasonable basis for collecting statistics; and ii) a high degree of data independence (logical as well as physical) is provided in database management systems.
数据库设计的逐步方法
由于处理数据的成本很高,数据库管理员面临的一个重要问题是如何有效地设计数据库。数据库设计是一个复杂的问题,它不仅涉及数据处理功能,而且最终涉及整个企业或机构。最近的研究结果表明,有效的数据库设计必须同时基于面向处理和非面向处理的信息,以信息结构和使用的角度来表示。利用数据库管理系统作为数据处理的载体,并利用数据重组功能集成这些透视图,提出了三步设计方法:从信息结构的角度进行设计步骤2。设计独立于逻辑结构的程序,并增加统计数据收集机制。根据从使用角度收集的统计数据重新组织数据库这种逐步方法促进了一种增量设计方法,在这种方法中,形成信息透视图的逻辑数据结构适应于使用透视图上的统计数据。它还提供了一种集成机制,用于组合信息结构透视图和使用透视图。然而,这种方法是基于两个重要的前提:1)信息结构视角是收集统计数据的合理基础;ii)数据库管理系统提供了高度的数据独立性(逻辑和物理)。
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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