共查询到19条相似文献,搜索用时 78 毫秒
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首先结合面向对象技术特性,对面向对象软件类级别的CK度量方法和系统级别的MOOD度量方法进行了分析,并就CK度量提出了优化的度量方法OCK。然后结合OCK度量和MOOD度量的优点提出了较优化的面向对象软件复杂性度量方法OSCM。OSCM度量可以有效地弥补CK度量和MOOD度量的不足,优化度量结果。 相似文献
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软件可视化是指利用印刷、图形、动画以及其它图形或摄影技术提高人们对软件的理解的技术.度量可视化是软件可视化研究的分支之一,它是把度量数据与可视化的图形结合来表示软件的结构.现有的度量可视化方法存在的不足是所能表示的度量指标等属性太少,表示出来的信息不够全面.为了表示更多的属性信息,提出了一种新的面向对象软件度量的3D可视化方法,利用组合图形表示软件实体(如类、方法等),使得所表示的属性数量加倍,从而更有利于对软件的理解和分析.开发出可视化工具M3DTool证明了该方法的有效性. 相似文献
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一组基于三级度量模型的面向对象度量准则 总被引:4,自引:0,他引:4
1 引言软件是信息技术的核心,软件的质量则是人们最关心的因素。软件度量作为刻画、评估和预示软件质量的一个必要和重要的方面,在70年代就开始被研究工作者所关注。从传统的结构化设计到面向对象理论的产生,一方面不断出现新的软件度量指标,如著名的 相似文献
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软件度量是提高和保证软件质量的关键。在给出的面向对象软件度量的结构模型基础上,讨论了实现该模型要解决的关键问题。通过度量结果的分析和评价,能够有效地对面向对象软件的测试和提高软件质量提供科学的依据。 相似文献
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面向对象度量—MOOD算法集及其应用分析 总被引:3,自引:0,他引:3
面向对象软件的主要特性包括抽象性、封装性、继承性和多态性等。本文在分析这些特性的基础上,介绍了一种能对这些特性进行全面度量的算法集,并对这种算法集在实际应用中可能出现的问题进行了分析,提出了一些新的观点。 相似文献
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The need to improve software productivity and software quality has put forward the research on software metrics technology and the development of software metrics tool to support related activities.To support object-oriented software metrics practice efectively,a model-absed approach to object-oriented software metrics is proposed in this paper.This approach guides the metrics users to adopt the quality metrics model to measure the object-oriented software products .The development of the model can be achieved by using a top-down approach.This approach explicitly proposes the conception of absolute normalization computation and relative normalization computation for a metrics model.Moreover,a generic software metrics tool-Jade Bird Object-Oriented Metrics Tool(JBOOMT)is designed to implement this approach.The parser-based approach adopted by the tool makes the information of the source program accurate and complete for measurement.It supports various customizable hierarchical metrics models and provides a flexible user interface for users to manipulate the models.It also supports absolute and relative normalization mechanisms in different situations. 相似文献
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软件度量学是软件工程领域的一个重要研究方向。通过软件度量,可以改进软件的体系结构,采用合适的软件开发过程,从而降低软件开发的成本,提高软件开发的效率,保证软件能满足用户的需求,开发出高质量的软件。分析了面向对象软件度量的特点,阐述了常用的面向对象软件度量方法,并在此基础上提出了以切片为中心的度量方法。 相似文献
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Measurement and defect modeling for a legacy software system 总被引:1,自引:1,他引:0
This paper analyzes the quality of a large-scale legacy software system using selected metrics. Quality measurements include defect information collected during product development and in-field operation. Other software metrics include measurements on various product and process attributes, including design, size, change, and complexity. Preliminary analyses revealed the high degree of skew in our data and a weak correlation between defects and software metrics. Tree-based models were then used to uncover relationships between defects and software metrics, and to identify high-defect modules together with their associated measurement characteristics. As results presented in tree forms are natural to the decision process and are easy to understand, tree-based modeling is shown to be suitable for change solicitation and useful in guiding remedial actions for quality improvement.The following are trademarks or service marks in the United States and/or other countries: IBM is a trademark of International Business Machines Corporation. REFINE and Software Refinery are trademarks of Reasoning Systems Inc. SAS is a trademark of the SAS Institute Inc. S-PLUS is a trademark of the Statistical Sciences, Inc. 相似文献
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In this paper, we investigate how to incorporate program complexity measures with a software quality model. We collect software complexity metrics and fault counts from each build during the testing phase of a large commercial software system. Though the data are limited in quantity, we are able to predict the number of faults in the next build. The technique we used is called times series analysis and forecasting. The methodology assumes that future predictions are based on the history of past observations. We will show that the combined complexity quality model is an improvement over the simpler quality only model. Finally, we explore how the testing process used in this development may be improved by using these predictions and suggest areas for future research. 相似文献
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A new reusability metric for object-oriented software 总被引:1,自引:0,他引:1
Software Quality Journal - Software reuse is big business. Managers of software houses know that reuse can bring financial rewards to their company, so long as effective reuse procedures are in... 相似文献
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面向对象数值软件Trilinos及其线性代数包剖析 总被引:1,自引:0,他引:1
分析研究了美国Sandia国家实验室Trilinos项目的设计思想、组织结构,该项目受到ASC计划等的资助.Trilinos框架中定义了一个线性代数对象模型,作为各种软件包的构建基础和沟通载体,此模型当前较成熟的实现为Epetra.详细地阐述了Epetra的组织设计和主要类的层次结构,通过两个数值实验考察该软件当前的性能.可以看到,以Trilinos为代表的众多数值计算项目,为各种数值软件的有效协作、集成和扩展所进行的努力和一些有价值的经验. 相似文献
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A software complexity model of object-oriented systems 总被引:1,自引:0,他引:1
A model for the emerging area of software complexity measurement of OO systems is required for the integration of measures defined by various researchers and to provide a framework for continued investigation. We present a model, based in the literature of OO systems and software complexity for structured systems. The model defines the software complexity of OO systems at the variable, method, object, and system levels. At each level, measures are identified that account for the cohesion and coupling aspects of the system. Users of OO techniques perceptions of complexity provide support for the levels and measures. 相似文献
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This paper concerns the use of design/source-code complexity metrics in analysing C++ software. It describes the use of one suite of object-oriented metrics published by Chidamber and Kemerer1 to evaluate a commercial C++ application. It provides an interpretation and critique of these metrics, including the use of two traditional metrics (Cyclomatic Complexity2 and Software Science3) in association with these object-oriented metrics. The evolution, over a two and a half year period, of one commercial grade C++ application comprising 114 classes with 25,000 lines of code is studied. The efforts consumed in bug fixes and enhancements are correlated with the complexity measures on a per class basis, and results are presented. These results are compared to those from other workers. The paper provides a detailed analysis of the practical strengths and weaknesses of the metrics suite in the light of experiences with its use. © 1998 John Wiley & Sons, Ltd. 相似文献