【作者】 彭辉；

【导师】 薛大伸；

【作者基本信息】 大连海事大学 ， 管理科学与工程， 2008， 硕士

【摘要】 传统的企业信息系统开发流程中,应用开发一直采用先开发、后集成的模式。许多企业在信息化建设中产生了大量为满足产品或业务需要的系统,但其间却往往缺少关联和通讯,导致这些系统成为了一个个“孤岛”,集成成本高昂,系统缺乏柔性。SOA(Service-Oriented Architecture,面向服务的架构)是新近发展起来的设计思想和架构,以服务或组件形式出现的业务逻辑可以被共享、重用和配置,主要应用是针对遗留系统的集成问题。本文首先研究了信息系统的柔性化的相关技术,理解现阶段信息系统柔性化的设计方法,并特别研究了软系统方法论。在此基础上集中介绍以“服务”为中心的面向服务的架构的实现技术,主要包括XML,SOAP,UDDI,WSDL和ESB。然后结合软系统方法论和面向服务架构各自的特点,提出一种新的信息系统分析设计方法——柔性面向服务方法,并对该方法的每个阶段的具体任务进行了说明。通过该方法的应用,既能在系统分析阶段考虑系统环境的变化,提高信息系统的向前柔性;又能在系统开发完成之后,企业内外环境发生变化的情况下,进行服务的重组,从而增强信息系统的向后柔性。最后结合某银行由于新业务(个人住房循环授信贷款)的增加,系统需要扩展为实例项目,根据其具体业务需求以及该银行的信息系统现状,应用柔性面向服务方法进行分析与设计,最后论证其在信息系统柔性化方面的显著特性,给出分析和展望。更多还原

【Abstract】 In the traditional enterprise IS development process, application development has been adopted the model of integration after development. Many enterprises in the development of the IS produce a large number of products to meet the needs of the system, which are often interrelated and lack of communication, resulting an "isolated island", lacking flexibility, and high cost of integration. SOA is a newly developed design concepts. Due to the form of services of the business can be shared, reuse and configuration, the main application is for the integration of legacy systems.This paper studies a flexible information system related technologies, flexible understanding of information systems at this stage of the design method and, in particular, on Soft Systems Methodology.On the basis of above, this paper focus on the related technology, which is oriented by "service" as the center of the SOA, including XML, SOAP, UDDI, WSDL, and ESB.Combined with software system methodology and service-oriented architecture, a new information system analysis method is offered, which is of the characteristic of flexible service-oriented approach, and with detailed explain for each stage of the specific tasks. Through the application of this method, the changes in the environment can be considered by designer in the analysis phase of systems, which can effectively improve information systems forward Flexible; after the system development, the reorganization of services can be achieved while changes in the enterprise environment arises, in turn, which also enhances the backward Flexible of the information systems.Finally an instance is showed with a bank of new business. According to their specific business needs, as well as the bank’s information systems and applied flexible service-oriented analysis and design methods, a new system is expanded as an example. Finally the notable features of the flexibility of the new approach in the information systems area is demonstrate, combined with analysis and prospects are given.更多还原