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天津理工学院图书馆中外文期刊微机辅助管理系统,经过近两年的研制、试用、运行,证明了该系统可提高内部业务管理水平、工作效率与服务质量。现就有关系统设计与使用方法作一介绍。1.信息结构分析与数据库设计应考虑的几个问题(1)将信息的状态分为静态与动态两类:静态信息指不随时间变化的信息,如刊名、价格等;动态信息指随时间变化的信息,如期数、财产帐号等。(2)根据信息的类型,将信息划分为字符型、数字型、日期型、逻辑型4种,并确定其宽度。(3)期刊管理中,按输入信息是否随时间修改分为两种:一种为信息输入后,长
After nearly two years of development, trial and operation, the microcomputer assisted management system of Chinese and foreign periodicals in the Library of Tianjin Institute of Technology has proved that the system can improve the internal business management level, work efficiency and service quality. Now on the system design and use of an introduction. 1. Information structure analysis and database design should consider several issues (1) the state of the information is divided into two categories of static and dynamic: Static information refers to the time-varying information, such as titles, prices, etc .; dynamic information refers to the time Change information, such as the number of months, property accounts and so on. (2) According to the type of information, the information is divided into character, number, date, logical type 4, and determine the width. (3) periodical management, according to whether the input information is modified over time divided into two kinds: one for the information input, long