【作者】 张继宏；

【导师】 徐林；

【作者基本信息】 四川大学 ， 计算机应用技术， 2005， 硕士

【摘要】 软件重用是将已有的软件及其有效成分用于构造新的软件系统的过程。面向对象分析和设计、设计模式以及组件技术都是提高软件重用程度的有效办法。框架重用是抽象层次更高的系统级重用,它表现为一组抽象构件以及构件实例之间交互的方法,是可被应用开发者定制的应用骨架。论文面向无线电监测应用领域提出一种可重用框架构建方法并给出其应用。首先对无线电监测领域的典型业务进行仔细分析,然后抽象出共性,作为创建可重用框架的基础;其次在应用系统的设计分析阶段,运用成熟的软件复用构建技术和思想,在逐步构建应用系统的同时逐步构建应用框架,应用框架是应用系统的骨架和核心,应用系统是应用框架的载体;二者紧密结合,同步演化。最后在完成应用系统的同时,也得到了基于本次应用开发的框架。该框架可作为下次同应用领域开发的起点,并随下一次开发过程继续进化改进,直到得到一个成熟稳定的应用框架。这种框架构建和重用模式是渐进式的,不需要一次投入大量人力和资金,重用的层次和程度也可根据项目的实际情况来决定,非常适合于中小软件公司。在设计和开发全国短波监测网络系统时,充分考虑和运用了上述的框架构建方法来构建应用系统,不但使该系统结构更加清楚,运行更稳定,也得到一个可重用的应用框架。在开发新的无线电监测系统时,都以该应用框架为基础,大大加快了开发进度,大幅降低开发成本,取得了良好的效益。论文所提出的应用框架构建和重用模式对其他应用领域的软件开发和重用实践也具有很好的借鉴意义。更多还原

【Abstract】 Software reuse is a process during which present software elements or artifacts are used to construct a new system effectively. OOA/OOD, design patterns and component technology are effective to make a good reuse. Framework is an advanced software reuse technology that can be customized by application. It is composed by a group of components that can be interacted with each other by using component-owned methods. This article presented a framework build method based on radio monitoring domain and it’s application. Firstly, as a base of constructing reusable framework, the typical business of radio monitoring must be analyzed and the common characteristic must be summarized. Secondly, in system analysis and design phase, framework was built with the creation of application simultaneously by using mature software reuse method. Framework was core of the application and the application was carrier of the framework. The relationship of them was tight and they were evolving together. At last, when application project completed the main part of framework was constructed as well. Furthermore this framework can be used as the start point of the next development and can be optimized persistently. As this framework building method was a step-by-step procedure, the cost was decreased. The level of framework reuse can be controlled according to the actual requirement and it was fit for the middle or small software company. When developing National Shortwave Monitoring Network System, a simple and elegant system structure was built by using the framework construction method mentioned above, a radio monitoring oriented framework was also constructed at the same time and it should be used in the next development. The model of application framework constructing and reusing in this article was significant as a reference in the other domain.更多还原