基于软件复用的开发模型的研究

介绍了软件复用技术的基本概念,分析了软件复用的过程;以江苏校园招聘网为例对软件复用技术的开发模型进行了详细的研究．     

软件复用技术在AMSystem系统中的应用

软件复用被视为解决软件危机,提高软件生产效率和质量的现实可行的途径。该文以日本一家中型自动售货连锁店信息管理系统中总部业务管理子系统(AMSystem)为背景,运用软件复用的开发思想和构件技术,对系统的功能性需求进行分析,抽象并出系统中通用性能,设计成通用性的构件,以方便各个模块开发人员复用,提高开发效率和产品质量。     

J2EE集成开源框架的应用与研究

在设计模式MVC思想的基础之上,该文提出了基于WebWork、Spring和Hibernate的J2EE轻量级集成框架的应用。首先简要的介绍了这三种开源软件的基础技术,然后给出了整个集成框架的原理,最后分析了在Web项目中集成框架的应用,并说明了集成框架在代码复用和开发效率上的优势。     

基于软件复用的开发模型的研究

介绍了软件复用技术的基本概念,分析了软件复用的过程;以江苏校园招聘网为例对软件复用技术的开发模型进行了详细的研究。     

一种基于向量空间模型的构件库设计

基于构件的软件工程可以提高软件的质量,降低软件开发和维护的成本,构件的描述是构件检索和复用的基础,该文提出了一种基于向量空间模型的构件匹配方法,从而提高构件的查全率和查准率,从而改进了构件库的检索效率。     

基于复用的工作流过程定义工具——PDTBR

为了提高工作流过程定义的效率,提出了一种基于复用的工作流过程定义方法。文中讨论了构建和描述可复用资产——领域业务本体和工作流模板的方法,给出了基于领域业务本体检索工作流模板的方法。在此基础上,开发了基于复用的过程定义工具PDTBR,并在实际使用中验证了该方法的可行性与有效性。     

一种生产线架构中的工作流过程定义复用方法

针对工作流管理系统在实际应用中面临的过程定义低效、复杂的问题,借鉴软件复用的思想,提出了一种生产线架构下的工作流过程定义复用方法.该方法建立在领域业务本体和工作流模板这两类可复用资产之上,尝试建立特定领域工作流过程定义的复用机制,以提高过程定义的效率.着重探讨了可复用资产的构建、描述和检索等问题.介绍了基于复用的工作流过程定义方法,并开发了相应的实用工具以验证该方法的有效性.     

A case study comparing defect profiles of a reused framework and of applications reusing it

The benefits of software reuse have been studied for many years. Several previous studies have observed that reused software has a lower defect density than newly built software. However, few studies have investigated empirically the reasons for this phenomenon. To date, we have only the common sense observation that as software is reused over time, the fixed defects will accumulate and will result in high-quality software. This paper reports on an industrial case study in a large Norwegian Oil and Gas company, involving a reused Java class framework and two applications that use that framework. We analyzed all trouble reports from the use of the framework and the applications according to the Orthogonal Defect Classification (ODC), followed by a qualitative Root Cause Analysis (RCA). The results reveal that the framework has a much lower defect density in total than one application and a slightly higher defect density than the other. In addition, the defect densities of the most severe defects of the reused framework are similar to those of the applications that are reusing it. The results of the ODC and RCA analyses reveal that systematic reuse (i.e. clearly defined and stable requirements, better design, hesitance to change, and solid testing) lead to lower defect densities of the functional-type defects in the reused framework than in applications that are reusing it. However, the different “nature” of the framework and the applications (e.g. interaction with other software, number and complexity of business logic, and functionality of the software) may confound the causal relationship between systematic reuse and the lower defect density of the reused software. Using the results of the study as a basis, we present an improved overall cause–effect model between systematic reuse and lower defect density that will facilitate further studies and implementations of software reuse.

奥运会设计中的民族传统文化挖掘与表现

奥运会设计的内容主要包括奥运会徽设计、奥运火炬设计、吉祥物设计等一系列的商业开发设计。奥运会设计是展现主办国家民族传统文化的重要途径和方式,我们可以通过奥运会充分领略举办国家的民俗风情。对于促进主办国家的经济发展起到举足轻重的作用。     

基于层次B样条的自由形状特征重用

借助层次B样条技术提出了一种自由形状特征的重用算法.首先利用低通滤波和泊松方程对源曲面上特征区域进行基面与细节特征的分离操作,求得基面与特征之间的偏移矢量场;然后利用平面参数化将偏移矢量场应用到目标曲面上完成特征重构;最后借助层次B样条技术优化重用结果.实验结果表明,该算法能够有效地完成自由形状特征的重用.