VB贸易公司管理系统(ER图+功能模块图+源程序)
Abstract
The trading company management system is the typical management information system and its development mainly consists of the development and maintenance of backstage database as well as the development of front end application procedure. The former is required to set up a database whose data has the property of uniformity, completeness and good security. To the latter, it needs the application procedure to be functionally complete and easily accessible.
First, grasps the design of overall system structure. The overall system design refers to divide the whole structure of the system and determine the procedure of subsystem and module, which is based on system investigation and analysis. The core problem in overall design is the definition of structure of system function and the division of subsystem and module. The design of structuralized system is to divide the system into a number of subsystems from the top of the system .But the subsystems are divided into modules which are further divided into the sub- modules, layer upon layer.
Secondly, according to the requirement of structuralized program design, centralize and modulize every function of system and thus the trading company can be divided into four modules: money lending sales management, commodity information management, the customer and the supplier information management and the system management.
The anticipated target is, according to the requirement of structuralized program design, to centralize and modulize every function of system and thus the trading company can be divided into four modules: money lending sales management, commodity information management, the customer and the supplier information management and the system management. We can check and edit the database information through every functional module.
Key Words: money lending sales, management information system,
the customer information, trade management 摘 要
首先，把握系统总体结构的设计。系统总体设计是指在系统调查与分析的基础上，对整个系统在结构上的划分，确定子系统与模块的处理流程。总体设计中最核心的问题是系统总体功能结构的确定和子系统与模块的划分。结构化系统设计的思想，就是自顶向下地将系统划分为若干个子系统，而子系统又划分为模块，模块又划分为子模块，层层划分。
其次，将系统各项功能进行集中、分块，按照结构化程序设计的要求，得出贸易公司管理系统大致可以分为四个模块，分别是借贷销售管理、商品信息管理、客户与供应商信息管理、系统管理。
要实现的目标是将系统各项功能进行集中、分块，按照结构化程序设计的要求，得出贸易公司管理系统大致可以分为四个模块，分别是借贷销售管理、商品信息管理、客户与供应商信息管理、系统管理。并通过各个功能模块对数据库信息进行查看与编辑。
关键词：借贷销售，管理信息系统 ，客户信息，贸易管理
目 录
摘 要 I
ABSTRACT（英文摘要） Ⅱ
目 录 Ⅲ
第一章 引 言 1
1.1 管理信息系统简介 1
1.2 课题的目的和意义 1
第二章 国内外现状及系统的设计目标 3
2.1 国内外现状 3
2.2系统研究设计的目标 4
第三章 系统结构与模型设计 6
3.1 系统的开发技术 6
3.2系统的总体结构设计 9
3.2.1 系统功能分析 10
3.2.2 系统功能模块设计 10
3.3 代码设计 11
3.4 数据库设计 15
3.4.1 数据库需求分析 16
3.4.2 数据库概念结构设计 17
3.4.3 数据库逻辑结构设计 18
第四章 系统的实现 20
4.1 数据库的实现 20
4.2 系统界面及各功能模块的实现 20
4.2.1 登陆界面的实现 20
4.2.2 系统主窗体的实现 21
4.2.3 供应商信息管理模块的实现 22
4.2.4 客户信息管理模块的实现 26
4.2.5 商品信息管理模块的实现 29
第五章 系统测试 31
5.1 测试环境 31
5.2 测试过程 31
第优章 结论 33
参考文献 34
致谢 1056
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