软件构件库是有效地管理软件构件的基础设施.分布式构件技术的发展,使得构件库除了管理传统下载使用的构件外,还必须能够管理日益增多的在线使用构件,并为在线构件服务质量提供相应的质量保证与支持.针对这一问题,本文首先引入了构件服务质量模型及相应的质量属性量化方法,同时给出相应的规约描述,然后提出了一种基于上述模型和规约的支持构件服务质量的构件管理方法,并描述了该方法在青鸟构件库管理系统(JBCLMS)中的实现.
Abstract
Software component library is the most effective way to manage the software component.With the development of the distributed component,the component library manages not only the traditional off-line components,but also on-line components.In addition to this,the component library must support QoS (Quality of Service) of component.In order to tackle the problem,first a component quality model,the ways of quality attributes measurement and corresponding specification are introduced in this paper.Then a method to support the QoS of component based on the model and specification mentioned above are put forward.At last,the implementation of the method in Jade Bird component library management system (JBCLMS) is described.
关键词
QoS /
构件库 /
主观反馈 /
客观反馈
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Key words
quality of service(QoS) /
component library /
subjective feedback /
objective feedback
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中图分类号：
TP309
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参考文献
[1] Web Services[Z].http://www-900.ibm.com/developerWorks/cn/webservices/ws-quality/index_eng.shtml,2002-01.
[2] Rajesh Sumra,Arulazi D.Quaity of Service for Web Services--Demystification,Limitations,and Best Practices[Z].http://www.developer.com/java/web/article.php/2248251,2002-05.
[3] ITU-T Recommendation 1.350.General Aspects of Quality of Service and Network Performance in Digital Network,including ISDNs[S].ITU-T,1993-03.
[4] Aoyama M,Weerawarana S,Maruyama H,Szyperaki C,Sullivan K,Lea D.Web services engineering:Promises and challenges[A].Proceedings of 24th International Conference on Software Engineering[C].Orlando,Florida,USA,IEEE Computer Society,2002-05.647-648.
[5] Zeng L Z,Benatallah B,Dumas M.Quality driven web services composition[A].WWW2003[C].Budapest,Hungary.2003-05.411-421.
[6] Xavier Franch.Systematic formulation of non-functional characteristics of software[A].In Proceedings of 3 rd International Conference on Requirements Engineering (ICRE)[C].USA:Colorado springs,IEEE Computer Society,1998.
[7] Akhil Sahai,Jinsong Ouyang,Vijay Machiraju,Klaus Wurster.Specifying and Guaranteeing Quality of Service for Web Services through Real Time Measurement and Adaptive Control[R/OL].HP Labs,http://www.hpl.hp.com/techreports/2001/HPL-2001-134.html.
[8] Svend Frolund,Jari Koistinen.Quality-of-Service Specification in Distributed Object Systems[Z].HP Technical Report,HPL-98-159.1998-09.
[9] 潘颖,赵俊峰,谢冰.构件库技术的研究与发展[J].计算机科学,2003,30(5):90-93.
[10] 杨燕燕.基于数据仓库技术的构件库系统研究[D].北京:北京大学计算机科学技术系,1999.
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脚注
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基金
国家863高科技发展计划资助项目 (No.2001AA113070); 国家重点基础研究发展规划973资助项目 (No.2002CB312003)
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