基于领域分析插件开发方法和应用.pdf

基于领域分析的插件开发方法与应用摘要软件复用一直是软件工程中一个热门课题,通过软件复用,可以减少不必要的重复劳动,提高软件生产的效率和质量。但是现代的企业应用软件越来越复杂,研究人员试图寻找一种软件体系结构帮助工程师解决软件的复杂性。基于插件式软件体系结构模式可以灵活地、松散地组装应用程序。插件是一个相对独立的运行单位,插件在软件运行时通过标准接口和其宿主程序进行通信并动态集成一个独立的软件。采用插件式方法开发的最大特点是实现软件的“即插即用”,企业在生产新的软件产品时,可以通过检索插件库的方法找到满足需求的插件,实现组装方式生产软件,这种方式不仅增大了软件的复用粒度,而且采取灵活配置软件的策略可以有效地应对客户多样性需求。企业应用系统作为一种重要的软件种类,相比其它软件(如电信软件)一般不会涉及到底层的操作系统控制、复杂的多线程操作以及和硬件系统大规模集成等技术问题,但是企业应用通常需要处理复杂的业务知识和业务规制,业务的复杂度可能导致软件架构的臃肿、难以理解,项目难以维护和升级甚至会冒着失败的风险。面向特征的领域建模技术是一种针对领域特征分层抽象地描述技术,运用该技术可以很好实现领域共性和个性的划分,实现领域复用。本论文针对企业应用系统在软件复用技术上所面临的问题,结合面向特征领域分析的新技术, 设计一种基于领域分析的插件开发方法,并在农业部农业建设项目管理信息系统工程中得到应用。关键词:插件体系结构;设计模式;领域分析:特征模型;软件复用 Development Methodology of the Plug-ins Based on Domain Analysis and Applicatio n Ab stract The software reuse is ahottopic insoftware sphere,because it can reduce the unnecessary duplication,improving the efficiency and quality of software though modern enterprise applications are more and plex,researchers have been trying tofind architecture tohelp engineers solve plexity ofsoftware. The software architecture can be flexible,loosely used toassemble with itshost programs though the standard interfaces,and integrates independent program modules on runtime dynamically. During development,the developers can getproper plug-in from plug’ins library to produce software byassembling。By thisway is not only increase thegranularity of software reuse,but also provide a strategy with flexible settings to tack plexity of user needs. Enterprise applications as an important software paring with other software fsuch as teleeoms software)often not involves hard multithreading problems or hardware and software enterprise applications software isusually required plex business logic and rules·It also means plexity can lead to afatarchitecture which isoften hard to itisdifficult tomaintain and upgrade,even facing the risk of tailure. The technology of feature,oriented domain modelin