外文翻译--超市信息管理系统

Abstract

In d on the main supermarket management, including stock management, cashier management,

inventory management and staff management 4 aspects. System can be completed on the various

types of information here, query, add, delete, modify functions. System is the core of marketing,

inventory management and receiving for the links between, each table will be linked to amend the

impact of other forms Upon the completionthe information age today, the effectiveness of the

computer is already known, particularly in the supermarket cash register system is inseparable from

the computer, the system complete of the sale or purchase operation, the system will automatically

complete the corresponding information changes. Query system is the core of the system based

mainly in the number and title of goods, such as query, the purpose is to facilitate users, in order to

find faster to the various materials and the basic product quality information. System integrity of the

users to add, delete and modify password function, the system used in Microsoft Office Access

2000 to design databases, and use the current good development tools - VB 6.0, it has the most

flexible structure of the database, the database applications are good support. This paper introduces

the topic of development background, to be completed by the function and development of the

process. Focus on the design of the system the focus of design ideas, technical difficulties and

solutions.

Key words: Supermarket Management Information System

Chapter 1: Introduction

1.1 social background

With modern science and technology in the rapid development of computer technology has

infiltrated brother areas, as an essential tool for all sectors, in particular the promotion of Internet

technology and the establishment of the information superhighway, so that the IT industry more

competitive in the market showed its unique advantages, entered the era of information, and has a

huge waiting for the data processing and transmission, which makes the database on the further

development and use of it is particularly urgent.

Some of the domestic market as small and medium-sized supermarkets, and their information in the

course of the pace to lag behind the large and medium-sized supermarkets, and for these enterprises

resource management, storage and processing of information was also an urgent need to adapt to the

market competition, it needs to be efficient handling and management methods, and speed up the

information supermarkets will be able to process less.

Attachment period, we have adopted in the market survey, for the small and medium-sized

supermarkets now on the business and personnel management of the actual needs of the

development of this supermarket management system. In the development process, we focused on

the current management of the supermarket characteristics and the actual level of technical staff,

based on the Windows graphical user interface easy to learn and use of this operating environment,

in the system design process, we as a people easy accessibility Machine Interface, allowing users to

fully grasp in the short term. We also always give top priority to the accuracy of the system, data

integrity and to deal with the validity. On the basis of this optimization code, to speed up the system

operation and reduce the system resources of the occupier.

1.2 supermarket background

Supermarkets in China formed in the 20th century, the early 1990s, China has now become an

important form of the retail industry for the development of the national economy has played an

important role. With the high-speed development of supermarkets, its management has become

increasingly complex, early in the form of salespersons Zhanguisi already unable to meet existing

sales development, and that the urgent need to introduce new management techniques.

Supermarket patterns provide a number of advantages, but in the current situation, it still exists

retail companies have been behind the side, such as: You can not effectively manage every

commodity, clearing receivables slow, error prone business, it is not appropriate for commodity

price adjustment , inventory and low efficiency, but also in day-to-day management of supermarket

goods the import and sales of such decision-making to experience mainly, the lack of real-time

analysis capabilities, management personnel, the timely transmission of information are not always

meet the requirements. Su Che supermarket forms of high-speed development, and its management

has become increasingly complex, the need to deal with the day-to-day data also gradually

increasing, commercial operation of the intermediate links more and more, the original artificial

management has been unable to cope with this complex market . Therefore, in the choice process, I

chose the topic of supermarket management system design, relying on the modernization of the

computer information processing technology to manage the supermarket, thus saving a large

amount of manpower, resources, and improve the working conditions of staff, reduce the labor

intensity, Commodities and quickly reflect the import and sales of all kinds of situations, such as

the feedback information and analysis so that the management staff of the rapid market changes to

make the corresponding decisions, speed up the supermarket business management efficiency. In

the information age today, the effectiveness of the computer is already known, particularly in the

supermarket cash register system is inseparable from the computer, the system completed on the

main supermarket management, including stock management, cashier management, inventory

management and staff management 4 aspects. System can be completed on the various types of

information here, query, add, delete, modify functions. System is the core of marketing, inventory

management and receiving for the links between, each table will be linked to amend the impact of

other forms Upon the completion of the sale or purchase operation, the system will automatically

complete the corresponding information changes. Query system is the core of the system based

mainly in the number and title of goods, such as query, the purpose is to facilitate users, in order to

find faster to the various materials and the basic product quality information. System integrity of the

users to add, delete and modify password function, the system used in Microsoft Office Access

2000 to design databases, and use the current good development tools - VB 6.0, it has the most

flexible structure of the database, the database applications are good support. This paper introduces

the topic of development background, to be completed by the function and development of the

process. Focus on the design of the system the focus of design ideas, technical difficulties and

solutions.

Commodity Management of the system against the scope of business and job characteristics, design

of the stock management, stock enquiries, sales management, sales enquiries, inventory

management and system maintenance six subsystems, six subsystems including the management of

major commodities business, the full realization of the purchase of goods, payment, sales,

receivables, and inventory management of the computer business, greatly reduce the workload of

the staff of shops, and comprehensively improve the management efficiency of the management of

goods as well as service quality, and level of the commodity management Business soars to a new

level in accordance with the needs of modern commodity management and development, and easy

to operate and aesthetically pleasing interface to the user save a lot of valuable time, the full

realization of the purchase of goods, payment, sales, receivables and inventory statistics, the

computer management business, greatly reduce the workload of the staff of shops, stores and

comprehensively enhance the efficiency and service quality management. Supermarkets need to

deal with a lot of inventory information, but also always updating product sales information, adding

commodity information. Faced with different types of information, the need to rationalize the

database structure to preserve data, the need for effective program structure to support the

implementation of various data manipulation. Store automation of product management in Europe

and the United States and other countries have already been realized, is the basis of retail

management. It can be the most important feature of real-time and accurate control of the shop sales.

If we can grasp in real time the sales process and sales, can be effective in speeding up the turnover

of goods and improve service quality and reduce product prices, such as inconsistent with the

problems that have occurred. Customer requirements of the consumer is shopping in the

supermarket in the hope that basically can be bought for commodities, but also to ensure that the

quality of goods but also enjoy high-quality, convenient service.

Chapter II :feasibility study

2.1 The technical feasibility study

In the IT industry in the employment of staff generally require mastering computer technology,

hardware and software has some basis, the use of management software will be familiar with IT

products. This is because some of the supermarket staff relatively high quality requirements, from

the management to the sales staff below, requires a certain degree of basic computer, the new

system put into use, as long as a small number of staff to conduct the training, the function of the

system and Basically, the use of the system can run smoothly.

2.2 economic feasibility study

Because sales information through the network transmission distance can be exempted from the

restrictions, it can borrow a lot of human and material resources, and facilitate management, which

can reduce unnecessary expenditures, while the system can improve the efficiency of supermarket

sales, which increased the economic Supermarket benefits, and so on the economy is feasible.

(1) supermarket afford systems development costs

Development of the new system is a complex task spacing, it is mainly the investment of human

and material investment. For the developers of the system, its major investment in human and

material resources or two. If it is our own development system for the staff, or its major investment

in human resources, from the investigation to the business needs of the coding system are produced

enormous human needs investment. Software enterprises as a short high-tech industries and their

employees than general corporate requirements of the request must be high, and the development of

the system and more understanding of the software industry, in a self-management system

developed in the course of our own relatively easy manpower, Such enterprises will be able to

borrow most of the additional expenditure. At the same time on other software products, a high-end

industry, whether it is the price or quality of products with relatively high, and the operator product

distributors or businesses are required to have strong financial support. Therefore, in the system

development process, enterprises are able to assume full development costs.

(2) new enterprise system will bring economic benefits

Is a management system of information, intelligence and advanced management concept of

aggregation. The management is a dynamic process, in the course of its operation a number of

measures to be taken. Therefore, in the management of access to comprehensive benefits is a

cost-effective, it must engage in direct quantitative analysis is more difficult. General the economic

benefits of the new system are outlined, the most important is to reduce the performance of

enterprise management costs and manpower expenditure. And other food through cumbersome new

system to be analysed solution not only saves a great deal of time, but also the decision-making

enterprises has provided valuable information for enterprises bring enormous economic benefits.

2.3 operating feasibility study

The system uses a Windows-based graphical user interface, and the system is the operating system

we are familiar with, for those who have general computer knowledge can be easy-to-use staff.

Supermarkets and the entire management system by the most friendly interface, brief and clear, no

need to conduct an in-depth understanding of the database.

Thus, the operation of the system is feasible, it is necessary to develop the system.

Based on the above three areas, the system has a high feasibility of the development, whether it is

technically or economically or operationally. Therefore, we can design the system data flow

diagram, establish a data dictionary.

Chapter III: system needs analysis

3.1 users workflow

Purchase or sale of goods, the user must Jinhuochan or sale of single-check review and registration;

users to obtain purchase, sales, inventory information, it is necessary to the purchase, sales,

inventory query and print.

3.2 users business needs

(1) the inventory management software will be tea for management and statistical information,

products and product sales Jinhuochan a single input management and statistics;

(2) The management software will be depending on the user's need to purchase, sales, inventory

query, and print detailed information;

(3) The management software will provide users with account management tools so that users on

the account management, for specific users add, delete users, modify user passwords;

(4) The management software provides enterprise management, enterprise employees can be

classified management and the addition of new employees, as well as employees to delete, modify

the information into functional.

Chapter IV: detailed design

4.1 Design thinking: (1). System is divided into several relatively independent modules, but these

modules to centralized management. (2). Hierarchical modular design thinking process, the entire

system is modular in design agencies. Application procedures are as strong operational and

scalability. (3). Reasonable data flow design, in the design of applications, relatively independent of

the data flow between modules interconnected so that the coupling between modules and lower for

the system's operation and improve the security of the system.

4.2. Design principles: In order to make the system fully functional comprehensive, easy to operate,

the maximum improve software quality, and to meet the practical needs of users in the design and

development process followed, as the following principles:

1), the principle of legality: accounting products based on the work requirements as well as

system requirements, in the light of the actual accounting work conducted by the goods such as

product, sales and other work.

2); practical principles: product information management for the actual needs, and be able to deal

with some special circumstances require, in addition, as far as possible, set aside space for

expansion capabilities.

3); accuracy principles: on the importation of relevant information to establish mechanisms seized

the wrong time error, allowing users to input timely and accurate legal information (such as

matching type, length not exceeding limits, etc.).

4); easy operating principles: to demand the complete system design, friendly interface, easy to

operate, suggested that the necessary places.

5); source readability principles: In order to facilitate other design, maintenance personnel

understand the code or modify the code after software upgrade maintenance, can be both good code

Notes work.

6) optimization principles: In order to achieve the purpose of optimizing and reasonable use of

windows, menus, objects of succession, since the user-defined objects, events, function, reduce

unnecessary repetition code, the procedure simplicity, ease of the future maintenance. 7); safety of

principle: the system administrator can set up a landing password, password privilege. After the

previous design of the whole system we have a preliminary understanding of the various modules

and functional differentiation.

Requirements Analysis

1, the system functional analysis

1) the maintenance of basic information

Type the establishment and maintenance, including new types of goods, modification and deletion.

Basic information management products: basic commodities including the new information,

modification and deletion.

Supplier of information management include: suppliers of new information, modification and

deletion.

Administrators information management: the system administrator add, delete and modify password.

2) stock management

Information Management bought goods: commodities stock information including commodity

purchase quantity, unit price, suppliers, etc.. Goods bought stock management functions complete

registration information, modification and deletion.

Categories Show: According to the merchandise can be a commodity type to view the stock

situation.

Inventory update: stock information directly related to changes in inventory changes.

Stock analysis: the current stock list of the largest previous purchase of goods and at least the first

several commodities.

Inventory: Inventory list of the current top number of goods and inventory for at least the first

several commodities.

3) Sales Management

Marketing information management: marketing information including marketing quantity, unit

price, statistics and dates. Merchandising sales information management capabilities registration,

modify, and delete.

Categories Show: According to the merchandise can see a certain type of merchandise sales.

Update Inventory: sales information directly related to changes in inventory changes.

Sales Analysis: lists the most current sales and sales of goods before at least several of the previous

commodity.

4) reported loss management

Information management products reported loss: loss of information on goods, including goods at

the number of loss, such as the reasons for reported losses. Commodities reported loss management

functions complete registration information reported loss, modification and deletion.

Categories Show: According to the merchandise can be a commodity type to view the reported loss

situation.

Update Inventory: loss reported the same information directly related to changes in inventory

changes.

Reported loss analysis: the current list at the top loss of several commodities and reported the loss

of at least the first several commodities.

Inventory Management: Integrated Query detailed inventory records. Automatic Alarm stock tips. If

excess inventory, fewer goods, such as a shortage. Software for your warning, the backlog of stock

losses and avoid shortages. Automatic calculation of inventory stocks.

4. Personnel management: staff members, suppliers, manufacturers and other basic information

about registration and management. Staff operating rights management. Customer sales

management competence.

Second, the system performance analysis

1) Multi-storey structure design

Strict sense of the three-tier structure design, the process is divided into logical structure of the user

interface, business logic and data processing layer storage layer. The system used on the three-tier

structure was further extended from the multi-storey structure.

2) object-oriented design

Lieutenant General merchandise type in the system, a package of goods and so on the

corresponding categories, each category has its own corresponding collections and operational

category, which once again raised the database operational safety procedures and scalability.

摘 要

在信息时代的今天，计算机的功效已经是家喻户晓，超市中尤其是收银系统更是离不开计算机，本系统主要完成对超市的管理，包括进货管理，收银管理，库存管理和员工管理四个方面。系统可以完成对各类信息的浏览、查询、添加、删除、修改等功能。系统的核心是销售、库存查询和进货管理三者之间的联系，每一个表的修改都将联动的影响其它的表，当完成销售或进货操作时系统会自动地完成相对应信息的修改。查询功能也是系统的核心之一，在系统中主要根据商品编号和商品名称等进行查询，其目的都是为了方便用户使用，以求更快的查到各个物料和产品品质的基本信息。系统有完整的用户添加、删除和密码修改功能，系统采用Microsoft Office中的Access 2000来设计数据库，并使用当前优秀的开发工具—VB 6.0 ，它有着最为灵活的数据库结构，对数据库应用有着良好的支持。论文主要介绍了本课题的开发背景，所要完成的功能和开发的过程。重点的说明了系统设计的重点、设计思想、难点技术和解决方案。

关键词：超市 管理信息系统

第一绪论

1.1社会背景

随着现代科学技术的迅猛发展，计算机技术已经渗透到哥哥领域，成为各行业必不可少的工具，特别是Internet技术的推广和信息高速公路的建立，使IT产业在市场竞争中越发显示出其独特的优势，步入信息化时代，有巨大的数据信息等待加工处理和传输，这使得对书数据库的进一步开发和利用显得尤为迫切。

作为国内市场的一些中小型超市，它们在信息化过程中的步伐要落后于大中型超市，而对于这些企业的资源管理，信息的存储和处理也显得迫切需要，要适应市场竞争，就需要有高效的处理方式和管理方法，因此加快超市的信息化进程是必可少的。

实习期间，我们通过对市场的调查，针对现在各中小型超市对经营业务和人事管理的实际需要，开发了这套超市管理系统。在开发过程中，我们针对当前各超市管理的特点和技术人员的实际水平，采用基于Windows图形用户界面这一易学易用的操作环境，在系统设计过程中，我们尽量采用易懂易读的人机界面，使用户可以在短期内完全掌握。我们又始终发系统的正确性放在首位，力求数据的完整和处理的正确性。在此基础上优化程序代码，加速系统运行和减少对系统资源的占用。

1.2超市背景

在我国超市形成在20世纪90年代初期，现在已经成为我国零售业的一种重要形态，为国民经济的发展发挥了重要的作用。随着超市高速的发展，其经营管理也变得愈加复杂，早期的售货员站柜台的形式早已不能满足现有销售也的发展，这样就迫切地需要引入新的管理技术。

超市形态具有种种优点，但在目前状况下，它仍存在零售业企业所共有的落后的一面，如：不能有效地管理每种商品，收款结算速度慢，容易出现营业差错，不宜进行商品调价，盘点效率低等，而且在超市日常管理中，商品的进、销、存等决策以经验为主，缺乏实时分析功能，管理人员对及时传递资料的要求始终得不到满足。苏辙超市形态的高速发展，其经营管理也变得愈加复杂，日常所需要处理的数据量也逐渐增大，商业运转的中间环节也越来越多，原始的人工管理已无法应对这复杂的市场。为此，在选题过程中，我选择了超市管理系统设计题目，依靠现代化的计算机信息处理技术来管理超市，从而节省了大量的人力、物力，改善了员工的工作条件，减轻了劳动强度，并且能够快速反映出商品的进、销、存等状况和各种反馈信息分析，使管理人员快速对市场的变化做出相应的决策，加快超市经营管理效率。在信息时代的今天，计算机的功效已经是家喻户晓，超市中尤其是收银系统更是离不开计算机，本系统主要完成对超市的管理，包括进货

管理，收银管理，库存管理和员工管理四个方面。系统可以完成对各类信息的浏览、查询、添加、删除、修改等功能。系统的核心是销售、库存查询和进货管理三者之间的联系，每一个表的修改都将联动的影响其它的表，当完成销售或进货操作时系统会自动地完成相对应信息的修改。查询功能也是系统的核心之一，在系统中主要根据商品编号和商品名称等进行查询，其目的都是为了方便用户使用，以求更快的查到各个物料和产品品质的基本信息。系统有完整的用户添加、删除和密码修改功能，系统采用Microsoft Office中的Access 2000来设计数据库，并使用当前优秀的开发工具—VB 6.0 ，它有着最为灵活的数据库结构，对数据库应用有着良好的支持。论文主要介绍了本课题的开发背景，所要完成的功能和开发的过程。重点的说明了系统设计的重点、设计思想、难点技术和解决方案。

本系统针对商品管理的业务范围及工作特点，设计了进货管理、进货查询、销货管理、销货查询、库存管理和系统维护六个子系统，这六个子系统包括了商品管理的主要业务，可以全面实现对商品的进货、付款、销货、收款和库存等业务的计算机管理，大大减轻了商店工作人员的工作量，全面提高了商品管理的管理效率以及服务质量，使商品管理水平和业务水平跃上了一个新的台阶根据现代商品管理的需要而开发的，操作方便及美观的界面给用户节省了不少宝贵的时间，全面实现对商品的进货、付款、销货、收款和库存统计等业务的计算机管理，大大减轻了商店工作人员的工作量，全面提高了商店的管理效率及服务质量。超市需要处理大量的库存信息，还要时刻更新产品的销售信息，不断添加商品信息。面对不同种类的信息，需要合理的数据库结构来保存数据信息，需要有效的程序结构支持各种数据操作的执行。商店自动化的产品管理在欧美等国家早已经实现，也是零售业管理的基础。它最主要的特点是能够实时的和准确的控制店内的销售情况。如果可以能够实时掌握销售流程及销售情况，则可以有效地加速商品的周转率并提高服务质量，而且可以减少产品售价不符等所产生的问题。顾客的消费要求的是希望在超市购物中能基本上都能购得所需的商品，并且还要既保证商品质量还要享受优质，方便的服务。

第二章 系统可行性研究

2.1 技术可行性研究

在IT行业中从业的工作人员一般都要求掌握计算机技术，具有一定的软硬件基础，会使用各种管理软件，熟悉IT产品。因为，有的超市对员工的素质要求比较高，从管理层到下面的销售人员，都要求具有一定的计算机基础，所以在新系统投入使用时，只要对员工进行少量的培训，系统的功能和使用方法就基本上能够是系统顺利运行。

2.2 经济可行性研究

因为通过网络传递销售信息可以不受距离的限制，因此可以借阅许多的人力和物力，方便管理，由此可以减少不必要的开支，同时该系统可以提高超市的销售效率，即提高了超市的经济效益，所以从经济上完全是可行的。

(1)超市有能力承担系统开发费用

开发新系统的工作是一项间距复杂的工作，它的投资主要是人力和物力的投资。对于本系统的开发者来说，其主要投资还是在人力和物力两个方面。如果是企业自己安排人手开发系统的话，其主要的投资还是在人力资源上，从系统的业务需求调查到系统的分析编码制作都是需要巨大的人力投入的。软件企业作为一个简短的高科技产业，其员工要求都比一般企业的要求要高，而且对系统开发及软件产业了解比较多，所以在自我开发管理系统的过程中，企业自己比较容易安排人手，这样就可以为企业借阅大部分的额外开支。同时软件就其它产品来说，属于高端行业，无论是产品的价格还是质量都比较高，而经营产品的经销商或者是商家都要求有雄厚的资金支持。所以，在系统的开发过程中，企业完全有能力承担开发费用。

(2)新系统将为企业带来经济效益

管理系统是一个信息化、智能化和先进管理理念的集合体。而管理是一个动态过程，在其运行过程中要采取多项措施。所以在管理中获得经济效益是一个综合效益，要对它进行直接定量的分析

是比较困难的。一般新系统带来的经济效益是简介的，其最主要的表现就是减少了企业管理费用和人力开支。而其它一些繁琐的食物都通过新系统来加以分析解决，不仅节省了大量的时间，还为企业的各项决策提供了宝贵的资料，为企业带来巨大的经济效益。

2.3 操作可行性研究

本系统采用基于Windows的图形用户界面，而该系统是大家熟悉的操作系统，对于那些有一般的计算机知识的人员就可以轻松上手。而整个超市管理系统采用最友好的交互界面，简介明了，不需要对数据库进行深入的了解。

由此，该系统的操作是可行的，有必要开发该系统。

综合以上三方面，该系统具有很高的开发可行性，无论是从技术上或者经济上还是操作上。因此，可以设计该系统的数据流程图，建立数据字典。

第三章 系统需求分析

3.1 用户工作流程

进货或销售商品时，用户要对进货单或销售单进行核对审查，并进行登记；用户要获得进货、销售、库存信息时，要对进货情况、销售情况、库存情况进行查询并打印。

3.2 用户业务需求

(1)该管理软件将对库存茶品进行资料管理和统计，对产品的进货单和产品的销售单进行录入管理和统计；

(2)该管理软件将根据用户的需要对进货、销售、库存情况进行查询，并能打印详细信息；

(3)该管理软件将为用户提供账号管理工具，以便用户对账号进行管理，具体为添加用户、删除用户、修改用户密码；

(4)该管理软件提供企业人员管理，能够对企业员工的分类管理，新员工的加入以及员工删除，修改进本信息等功能。

需求分析

一、 系统功能分析

1）基本信息的维护

商品类型的建立与维护，包括商品类型的新建、修改和删除等。

商品基本信息管理：包括商品基本信息的新建、修改和删除等。

供货商信息管理：包括供货商信息的新建、修改和删除等。

管理员信息管理：系统管理员的添加、删除和修改密码等。

2）进货管理

商品进货信息管理：商品进货信息包括商品进货数量、单价、供货商等。商品进货管理功能完成进货信息登记、修改和删除等。

分类查看：可以根据商品类型来查看某种商品的进货情况。

更新库存：进货信息的变动直接关系到库存的变化。

进货分析：列出当前进货量最多的前几项商品和进货量最少的前几项商品。

库存分析：列出当前库存量最多的前几项商品和库存量最少的前几项商品。

3）销售管理

商品销售信息管理：商品销售信息包括商品销售数量、单价、统计日期等。商品销售管理功能完成销售信息登记、修改和删除等。

分类查看：可以根据商品类型来查看某种商品的销售情况。

更新库存：销售信息的变动直接关系到库存的变化。

销售分析：列出当前销售量最多的前几项商品和销售量最少的前几项商品。

4）报损管理

商品报损信息管理：商品报损信息包括商品报损数量、报损原因等。商品报损管理功能完成报损信

息登记、修改和删除等。

分类查看：可以根据商品类型来查看某种商品的报损情况。

更新库存：报损信息的变动同样直接关系到库存的变化。

报损分析：列出当前报损量最多的前几项商品和报损量最少的前几项商品。

库存管理： 综合查询库存明细记录。 库存状态自动告警提示。如库存过剩、少货、缺货等。软件为您预警，避免库存商品积压损失和缺货。 库存自动盘点计算。

4. 人员管理： 员工、会员、供货商、厂商等基本信息登记管理。 员工操作权限管理。 客户销售权限管理。

二、系统性能分析

1）多层结构设计

严格意义上的三层结构设计，其程序逻辑结构分为用户界面层、业务逻辑处理层和数据存储层。本系统采用的上有三层结构进一步扩展而成的多层结构。

2）面向对象设计

在系统中将商品类型、商品等都封装成相应的类，同时每个类都有自己对应的集合类和操作类，从而再次提高了对数据库操作的安全性和程序的可扩展性。

3. 指导经营的功能

进销存管理系统并不仅仅能代替传统的书面操作，更重要的是它提供了信息分析的功能，只要单击一个按钮就可以查到目前销售最好的商品或是库存最多的商品，从而起到指导经营的作用。

第四章:详细设计

4.1设计思想:

（1）.系统分成几个相对独立的模块，但这些模块都进行集中式管理。

（2）.分层的模块化程序设计思想，整个系统采用模块化机构设计。作为应用程序有较强的可操作性和扩展性。

（3）.合理的数据流设计，在应用系统设计中，相对独立的模块间以数据流相互连接，使各模块间的耦合性较低，方便系统运行，提高系统安全性。

4.2.设计原则:为了使本系统功能齐全完备，操作简便，最大限度的提高软件的质量，从而满足用户的实际需要，在设计开发过程中遵循了，如下原则：

1）;合法性原则：依据产品核算系统的工作规定以及要求，参照核算实际的工作情况， 进行诸如产品经货、销售等工作。

2）;实用性原则：适合产品信息管理工作的实际需求，并能够处理一些特殊情况的要求，此外，尽可能预留空间，以便扩充功能。

3）;准确性原则：对输入的相关资料建立检错机制，及时报错，使用户能够及时准确的输入合法资料（如类型匹配，长度不超限等）。

4）;易操作原则：要求设计的系统功能齐全，接口友好，操作方便，必要的地方进行提示。

5）;源程序可读性原则：为了便于其它设计，维护人员读懂代码或以后的代码修改，软件升级维护，既可能做好代码注释工作。

6）优化原则：为了达到优化的目的，合理的运用窗口，菜单，对象等的继承，自定义用户对象，事件，函数，减少不必要的重复性代码，使程序简洁明了，也方便了将来的维护。

7）;安全性原则：该系统的管理员具有可设置登陆密码，修改密码的权限。经过前面的设计，我们对整个系统有了一个初步的认识，并对各个模块进行了功能分化。