本科生毕业设计（论文）
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摘 要
本系统是基于为轴承企业采购部门开发的系统。课题主要采用自上而下的结
构化程序设计方法与面向对象方法相结合的方法，致力于达到标准的现代化物流
管理要求。帮助轴承企业采购部门全面实现电子化、自动化、标准化的现代化先
进管理模式。
该系统使用 Visualbasic.net 编程语言进行界面设计和代码设计，主要使用
Visualbasic.net 中的 ADO.NET 来对数据库进行各种操作，数据库设计使用 SQL
Server 2000 创建 。
该系统主要实现对货品信息和采购信息的管理，以采购管理系统为模型，以
单据查询、采购管理、基本信息管理以及系统维护等为主要功能。
正文分八章：第一章是绪论，主要涉及系统的开发背景和开发目的；第二章
至第七章讲述软件生命周期各阶段的任务、过程、结构化方法和工具；第八章是
对整个文章的总结。
关键词：采购；查询；数据库设计；客户端/服务器模式
本科生毕业设计（论文）
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Abstract
Anshun bearing purchase management system is developed for purchasing
department of bearing enterprise. This article discusses the development of the system
by combining the up-to-down method of structure program design and object-oriented
method，trying to meet the requirement of management of standard and modern physical
distribution, and enable the purchasing department of axletree enterprises electronic,
automatic, standard and modern management mode.
The system adopted the Visual Basic.net language to develop the UI and main
codes. ADO.net technology was used to complete various database operations. The
database system is SQL Server 2000.
This system mainly implements the function of management of goods information
and purchase information ， drawing up the management system of purchase as the
mode, with the function such as: query of bill, purchasing management, basic
information management and system maintenance.
The paper encompasses eight chapters: Chapter One introduces the background
and objective of the development of the system. Chapter Two to Chapter Seven focus
on the task, process, structure method and tools at every stage of the software
development life cycle. Chapter Eight is the conclusion of the whole paper.
Keywords: purchase; query; database design；C/S mode
本科生毕业设计（论文）
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目 录
第 1 章 绪 论 ...........................................................................................................1
1.1 背景分析 ....................................................................................................1
1.2 系统的设计目标 ........................................................................................1
1.3 开发工具的选用及介绍 ............................................................................2
1.3.1 Visualbasic.NET 开发环境..............................................................2
1.3.2 SQL Server2000 的简介 ..................................................................3
1.3.3 SQL 语言及使用 .............................................................................4
1.4 ADO.NET 技术介绍...................................................................................4
第 2 章 可行性研究 .................................................................................................6
2.1 问题定义 ....................................................................................................6
2.2 可行性研究 ................................................................................................6
2.2.1 技术可行性 .....................................................................................6
2.2.2 经济可行性 .....................................................................................7
2.2.3 操作可行性 .....................................................................................7
2.2.4 法律可行性 .....................................................................................7
第 3 章 需求分析 .....................................................................................................8
3.1 用户需求 ....................................................................................................8
3.2 功能需求 ....................................................................................................8
3.3 需求建模 ....................................................................................................9
3.4 工作流程 ....................................................................................................9
3.4.1 数据流程图 .....................................................................................9
3.4.2 数据字典 .......................................................................................12
第 4 章 总体设计 ...................................................................................................16
4.1 功能模块图 ..............................................................................................16
4.2 数据库设计 ..............................................................................................17
4.2.1 数据库需求分析设计 ...................................................................18
4.2.2 数据库概念结构设计 ...................................................................18
本科生毕业设计（论文）
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4.2.3 数据库物理结构设计 ...................................................................22
4.2.4 数据库逻辑结构设计 ...................................................................23
第 5 章 详细设计 ...................................................................................................24
5.1 结构程序的设计 ......................................................................................24
5.2 子系统设计 ..............................................................................................25
5.2.1 管理功能子系统 ...........................................................................25
5.2.2 采购功能子系统 ...........................................................................26
5.3 菜单设计 ..................................................................................................26
5.4 采购管理系统的菜单设计 ......................................................................27
5.5 界面的设计 ..............................................................................................28
5.5.1 采购管理系统界面 .......................................................................28
5.5.2 管理功能相应界面 .......................................................................29
5.5.3 采购管理相应界面 .......................................................................32
5.5.4 操作员登录相应界面 ...................................................................34
5.6 模块的设计 ..............................................................................................35
5.7 程序流程图 ..............................................................................................35
第 6 章 系统测试 ...................................................................................................37
6.1 测试的目的 ..............................................................................................37
6.2 测试准则 ..................................................................................................37
6.3 测试方法 ..................................................................................................38
6.4 安顺轴承采购管理系统的测试步骤 ......................................................38
6.4.1 模块测试 .......................................................................................38
6.4.2 子系统测试 ...................................................................................38
6.4.3 系统测试 .......................................................................................38
6.4.4 验收测试 .......................................................................................39
6.5 安顺轴承采购管理系统的单元测试 ......................................................39
6.5.1 测试重点 .......................................................................................39
6.5.2 代码审查 .......................................................................................39
6.6 安顺轴承采购管理系统的确认测试 ......................................................39
第 7 章 系统维护 ...................................................................................................41
7.1 系统性能分析 ..........................................................................................41
第 8 章 总结 ...........................................................................................................42
参考文献 .................................................................................................................43
致 谢 .......................................................................................................................45
