网上订餐系统的设计与开发

Abstract: With the rapid development of the internet, companies of all kinds are not willing to miss out on such a huge market. The online direct sales method, due to its saving of manpower and resources, has become the preferred option. Especially for small and medium-sized enterprises and some early entrepreneurs, the low threshold for entering the online market has made them eager to showcase their products. Therefore, their demand for online direct sales systems is particularly urgent, but at the same time, their requirements for websites are not high. They only need a system that can accurately and directly reflect the prices and characteristics of their products with good security, and can have long-term help for the updating and maintenance of the system and website. Successful e-commerce platforms like Alibaba and its subsidiary Taobao are the best examples. For this graduation thesis, we have chosen the online ordering system. This system adopts the B/S mode, which moves all processing functions to the server-side. The user's request is made through the browser, and the B/S structure is more economical and convenient than the traditional C/S mode in terms of usage and database maintenance. It also divides maintenance tasks: the administrator is responsible for the daily management and maintenance of the server hardware, and the system maintenance personnel are responsible for the background database data update and maintenance. With the B/S mode, a new solution for online ordering is provided. Using ASP.NET web application, users can connect to the back-end database and complete operations through the browser software. The B/S mode online ordering system has convenient data maintenance, does not require dedicated software on the client side, has good network scalability, and supports direct access to the Internet via TCP/IP protocol. For the B/S mode, the physical location of the program and data is no longer important, what visitors are concerned about is only their URL. This system uses ASP.NET technology, which is a dynamic web design technology introduced by Microsoft, used for server-side script environment in WWW services to interpret and execute dynamic, interactive, and efficient site server applications. Keywords: online ordering system; ASP.NET; SQL SERVER 2005; [Background and Significance] The rapid development of the internet has changed the way companies conduct business. The online marketplace presents a huge opportunity for companies to reach a wider customer base and reduce operational costs. In particular, the demand for online direct sales systems from small and medium-sized enterprises and entrepreneurs is growing. These businesses are looking for a cost-effective and efficient way to showcase their products and facilitate transactions online. By developing an online ordering system using ASP.NET, this thesis aims to address the needs of businesses in the food industry and provide them with a platform to expand their reach and increase sales. The significance of this study lies in its potential to contribute to the growth and success of businesses operating in the online marketplace. [Thesis Structure] This thesis is structured as follows: after the introduction, the development technology used in the online ordering system will be introduced. The requirements analysis, feasibility analysis, and functional analysis will be presented to outline the framework of the system. The business process analysis, database design, ER diagram, data dictionary, and data flow diagram will be discussed in detail, followed by the system design and screenshots of the developed system. The testing process and the results will be presented, followed by a summary of the findings and acknowledgments and references for further reading. [Development Technology Introduction] The development of the online ordering system is based on ASP.NET technology, which is known for its dynamic web design capabilities. It allows for the creation and execution of interactive and efficient server applications. Additionally, SQL SERVER 2005 is used as the backend database management system, providing a secure and reliable data storage solution for the system. [Requirements Analysis] The requirements analysis focuses on identifying the key features and functionality that the online ordering system needs to provide to meet the needs of businesses and customers. This includes user registration and login, product catalog and browsing, order placement and payment processing, as well as order tracking and management. [Feasibility Analysis] The feasibility analysis assesses the practicality and viability of developing the online ordering system. It considers factors such as technical feasibility, economic feasibility, and operational feasibility to determine the likelihood of successful implementation and operation of the system. [Function Analysis] The function analysis outlines the specific functions and capabilities of the online ordering system, including user interface design, backend database management, and system integration with payment gateways and delivery services. [Business Process Analysis] The business process analysis delves into the operational workflows and business processes involved in the online ordering system. This includes the step-by-step process of placing and fulfilling orders, as well as the management of inventory and customer information. [Database Design, ER Diagram, and Data Dictionary] The database design section outlines the structure and organization of the backend database used in the system. This includes the ER diagram, which visually represents the relationships between entities, and the data dictionary, which provides a detailed description of the data attributes and their definitions. [Data Flow Diagram] The data flow diagram illustrates the flow of data and information within the online ordering system, showing how data is input, processed, and output through different components and modules of the system. [Detailed Design] The detailed design section provides a comprehensive overview of the system architecture, interface design, and module specifications. It includes system screenshots to illustrate the user interface and functionality of the online ordering system. [Testing] The testing process includes a series of tests to validate the functionality, performance, and reliability of the online ordering system. This includes unit testing, integration testing, and user acceptance testing to ensure that the system meets the specified requirements and performs as intended. [Summary] The summary presents an overview of the key findings and outcomes of the development and testing of the online ordering system. It highlights the achievements and challenges encountered during the development process and provides recommendations for future improvements and enhancements. [Acknowledgments] The acknowledgments section expresses gratitude to individuals, organizations, and support received during the development of the online ordering system. It recognizes the contributions and assistance of those who have helped make the project possible. [References] The references section provides a list of sources and literature used as references and citations throughout the thesis. It includes academic papers, books, and online resources that have contributed to the research and development of the online ordering system.