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Design and Implementation of a Multi-Tier Application Architecture: Hotel Booking System

作　者: Girigi Déogratias（吉瑞）
导　师: Wu Min；Cao Weihua
学　校: 中南大学
专　业: Computer Application Technologies
关键词: N-Tier 分布式应用应用结构 COM组件 DCOM 离散记录集商业规则数据层逻辑层代码重用性向后兼容
分类号: TP311.52
类　型: 硕士论文
年　份: 2003年
下　载: 34次
引　用: 0次
阅　读: 论文下载

内容摘要

本文涉及了一种运用多层应用结构的宾馆预约系统设计与应用。传统的2层模型存在明显的缺陷,使得开发和维护成本高昂。三层及n层模型则致力于解决这些问题,其实现主要是通过将应用逻辑从客户端移到服务器端。这种对n层网络计算模型的趋向显示了计算发展的强劲趋势,并对企业及基于Web的应用产生了深远的影响。当然,加入越多的层将对性能有更多的影响。在多层应用中,客户端仅呈现一层,即用户界面,而商务管理在用户界面与数据存储之间的一个系统中执行。在应用的生命周期期间,使用“多层”方式可以带来很多好处,包括可重用性、灵活性、易管理、可维护性、可测量性、多语种支持以及更高的安全性等等。前面提到的3层结构可以解决2层模型内在的问题。自然这也会带来新的问题,但与其优点相比就显得微不足道。将程序分为若干层使各层或各模块可以单独进行开发、管理、部署和增强。这个系统设计用来在目前宾馆运作中帮助管理人员及普通店员。满足三个主要功能:管理、在线预约和离线预约。本文运用三层模型来实现及整合不同的模块,该模型能在不改变主框架的同时改善决策。通过将应用分为三层,使企业应用和Web应用能共享组件。这使系统更灵活,更容易维护,且改善了网络传输和数据安全性。

全文目录

Chapter 1 Introduction  12-18
  1.1 Introduction  12
  1.2 Multi-tier architecture overview  12-14
  1.3 Overview of the Kaze International Hotel  14-16
    1.3.1 Activities at service desk  14-16
    1.3.2 Description of the hotel Web site  16
  1.4 Goals of the project  16-17
  1.5 Methodology and approach of the study  17-18
Chapter 2 Multi-tier Application Architecture  18-29
  2.1 Application structure  18-19
  2.2 Application architecture  19-23
    2.2.1 Single-tier application  19
    2.2.2 Two-tier application  19-20
    2.2.3 Multi-tier application  20-22
    2.2.4 The physical model  22-23
  2.3 Distributed application  23-25
    2.3.1 Definition  23-24
    2.3.2 Elements of a distributed application  24-25
    2.3.3 COM and DCOM  25
  2.4 Multi-tier application with MTS  25-27
    2.4.1 Developing N-tier application with MTS  25-26
    2.4.2 MTS component requirements  26
    2.4.3 Benefits of using MTS  26
    2.4.4 Security  26-27
  2.5 General design tip for using COM+  27-29
    2.5.1 Designing for scalability  27-28
    2.5.2 Designing for availability  28
    2.5.3 Programming component security  28-29
Chapter 3 System Analysis  29-39
  3.1 Requirements specifications  29-30
  3.2 System analysis overview  30-32
  3.3 Concept exploration  32-38
    3.3.1 System flow diagram  32-33
    3.3.2 Concept explanation  33-38
      3.3.2.1 Reservation subsystem  33-35
      3.3.2.2 Lodge management  35-36
      3.3.2.3 Financial service  36-37
      3.3.2.4 Report system  37-38
  3.4 Technical feasibility  38-39
    3.4.1 Hotel web site  38
    3.4.2 Custom application  38-39
Chapter 4 Data Abstraction and Modules  39-50
  4.1 Overview  39
  4.2 Entity relationship diagram  39-40
  4.3 Major system features and functions  40-43
    4.3.1 Management system overview  40-41
    4.3.2 Breakdown of the system modules  41-43
  4.4 Data structures  43-46
  4.5 Data manipulation algorithm  46-50
    4.5.1 Data input  46-47
    4.5.2 Data deletion  47
    4.5.3 Data editing and modification  47-48
    4.5.4 Entering new booking  48-50
Chapter 5 User Interface Design  50-59
  5.1 Front desk application  50-56
  5.2 Web application  56-59
Chapter 6 Implementation  59-69
  6.1 Database Implementation  59-61
    6.1.1 Defining, using and controlling the database  60
    6.1.2 Declarative data accuracy constraints  60
    6.1.3 Referential integrity considerations  60-61
    6.1.4 Database security  61
  6.2 Component development  61-63
    6.2.1 Overview of business rules  61-62
    6.2.2 Implementation strategy  62-63
  6.3 Web application implementation  63-66
    6.3.1 Web scripting architecture  63-64
    6.3.2 Web application protection  64-65
    6.3.3 Business rules and business processes  65-66
  6.4 Credit card validation  66-68
  6.5 Service desk application  68-69
Chapter 7 Conclusions  69-71
  7.1 Software specification  69
  7.2 Hardware specification  69-70
  7.3 Suggestion and conclusions  70-71
    7.3.1 Performance  70
    7.3.2 Security  70
    7.3.3 Limitations  70-71
Appendix  71-83
  Appendix A Data dictionary  71-72
  Appendix B Database object (Tables)  72-76
  Appendix C Code sample  76-82
  Appendix D Summary receipt report  82-83
References  83-85
Acknowledgements  85

Design and Implementation of a Multi-Tier Application Architecture: Hotel Booking System

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全文目录

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