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随着计算机技术在工程领域内的广泛应用,为了开发一些实用的应用软件,对一些大型软件的重用和软件二次开发的研究成为趋 势,该文介绍了如何使用Web Services和软件的自动化技术实现软件重用,使应用软件更加模块化和易操作,也使得软件的二次开发更为 容易。 相似文献
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软件重用被视为解决软件危机、提高软件生产率和质量的有效途径。传统的软件重用的活动仅限于机构或企业的内部,随着Internet应用的逐渐普及,WWW已经发展成为一个巨大的分布式信息空间,为用户提供了一个极具价值的信息源,也对软件重用技术产生了重大的影响。其跨平台、分布式的特点为软件重用的应用实践活动开辟了广阔的前景。文中提出了在WWW上开发软件重用环境的思想,并由此设计了DSSRE系统。该系统基于SSRE,并了一个分布式、面向对象的支持软件重用的开发环境。 相似文献
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基于设计模式的软件重用 总被引:15,自引:0,他引:15
针对软件重用。提出应用设计模式来记录软件设计知识。这可以使软件重用从构架重用提高到软件开发各阶段知识的重用。此外结合通用仓库/销售系统的实际对设计模式的用法进行了讨论。 相似文献
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类比推理在软件重用和程序综合中得到了广泛的应用。本文提出了一种基于软件相似的类比推理方法,详细讨论了软件重用过程中类比推理的两个重要环节:结构匹配和参数代换。最后,我们给出了该方法在信息系统开发中的应用。 相似文献
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基于对象的软件重用技术研究 总被引:1,自引:0,他引:1
讨论了基于对象的可重用软部件的重用技术,给出了可重用软部件模型的定义,提出了分层次的目录结构的组织方式及两种检索途径,阐述了软部件的生成方法及重用机制。 相似文献
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Software reusability is widely believed to be a key to help overcome the ongoing software crisis by improving software productivity and quality. New computer technology and the demands of an advancing society require new and more complicated software. It is unrealistic to expect that every software system can be developed solely reusing existing software; however, software reusability has proven to be a way of enhancing software productivity and quality in different organizations. It is also believed that reuse of code segments alone does not significantly reduce software development effort.By creating reuse support information while software is being developed (when the software is best known to software developers), the reuse effort for both software development and maintenance can be potentially reduced.In this paper, five types of RSI are presented: Semantic Web, Horizontal Web, Vertical Web, Syntactic Web, and Alternative Web. We collectively call these five webs a Quintet Web. The Semantic Web enables software developers to locate a software segment. The Horizontal Web provides a means to reuse a block of soflware along with other types of software from other phases of a development process. The inter-phase integration of software can be performed through this Web. The Vertical Web identifies the vertical relationship of a software block to its operational environment. The Syntactic Web locates all statements in which a variable is used. The Alternative Web provides alternative software blocks that perform an identical operation.A prototype of the Quintet Web is presented. 相似文献
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软件复用经济学模型比较分析 总被引:2,自引:2,他引:0
说明了软件复用经济学模型的主要目的和任务,对目前国际上提出的12个模型进行了比较分析。将复用经济学模型划分为两类:成本收益模型和投资分析模型,并举例介绍了相关类型的模型。对分析的所有模型列表比较,分析了它们的适用情况和异同点,并对领域存在的问题进行了讨论。 相似文献
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Software reuse is an effective way to improve software productivity and quality. Software libraries are getting bigger, while most of them, such as those for object-oriented languages, use simple but somewhat ineffective classification methods. These libraries typically provide search aids for novices, but not for experts. They are not flexible enough to adequately serve users with different abilities. In this paper, a Software Reuse Framework (SRF) for overcoming these drawbacks is proposed. Based on a built-in hierarchical thesaurus, the classification process can be made semi-automatic. SRF is a domain-independent framework that can be adapted to various libraries. SRF also provides four search levels to serve users with different skill levels. Two sample SRF systems are implemented, one for Smalltalk-80 and the other for MFC 4.0 (Microsoft® Foundation Class) libraries. © 1998 John Wiley & Sons, Ltd. 相似文献
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Taghi M. Khoshgoftaar Edward B. Allen Kalai S. Kalaichelvan Nishith Goel 《Empirical Software Engineering》1996,1(1):31-44
This paper presents a case study of a software project in the maintenance phase. The case study was based on a sample of modules, representing about 1.3 million lines of code, from a very large telecommunications system. Software quality models were developed to predict the number of faults expected from the coding through operations phases. Since modules from the prior release were often reused to develop a new release, one model incorporated reuse data as additional independent variables. We compare this model's performance to a similar model without reuse data.Software quality models often have product metrics as the only input data for predicting quality. There is an implicit assumption that all the modules have had a similar development history, so that product attributes are the primary drivers of different quality levels. Reuse of software as components and software evolution do not fit this assumption very well, and consequently, traditional models for such environments may not have adequate accuracy. Focusing on the software maintenance phase, this study demonstrated that reuse data can significantly improve the predictive accuracy of software quality models. 相似文献
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VB环境下基于类的软件复用技术研究 总被引:1,自引:1,他引:1
李志伟 《计算机工程与设计》2010,31(5)
为提高VB环境下软件开发的效率,研究了软件复用技术,提出了以代码组件为核心的软件复用工程化思想.结合具体应用,详细介绍了VB中类的创建、复用方法,以及基于类的ActiveXDLL代码组件复用技术,同时还对VB中常用的其它代码组件的复用方法进行了简单介绍.研究结果表明,合理利用相关的软件复用技术,可以缩短软件的开发周期,提高软件的开发质量. 相似文献
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阐述了基于构件的软件复用技术,并就基于构件软件开发技术在管理信息系统(MIS)中的应用作了探讨,对提高软件开发效率有着重要意义。 相似文献
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The contribution of this paper is a reference model for the practice of software reuse. Our research thesis is that software development based upon a software reuse reference model improves quality of products, productivity of processes and product time‐to‐market for many software development enterprises. The definition and investigation of such a model has been carried out using three steps. First, the reference model is developed based on existing software reuse concepts. Second, this reference model is empirically studied using both legacy studies and lessons learned studies. Third, the impact of the reference model on software development productivity, quality, and time‐to‐market is empirically derived. Copyright © 2000 John Wiley & Sons, Ltd. 相似文献
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研究了一个分布式的模块化的组件库系统的组件分类、管理和检索方案的设计与实现.提出了一个以新型组件库概念模型为基础的具有层次风格的组件库检索管理系统模型——CDIX-Ⅰ,并对CDIX-Ⅰ模型进行了详细的讨论.实践表明,在CDIX-Ⅰ模型指导下开发的CDIX-Ⅰ系统在速度、稳定性和安全性方面都能很好地满足用户的需要. 相似文献