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ID:36576758
大小:3.75 MB
页数:115页
时间:2019-05-12
《支持最终用户编程的服务虚拟化方法研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、中国科学院计算技术研究所博士学位论文支持最终用户编程的服务虚拟化方法研究姓名:房俊申请学位级别:博士专业:计算机软件与理论指导教师:韩燕波20060101借鉴文本挖掘领域的相关研究结果.提出一种基于排序法策略的服务聚类机制,该机制包括以下内容:基于排序法的服务聚类算法;服务全局视图生成算法以及服务聚类体系的适应性调整算法.对服务聚类技术的研究弥补了现有服务聚类方法缺少理论依据,基本采用“本地视图”模式的不足.·设计并初步实现了支持最终用户编程的服务虚拟化原型系统。此外,还以“先进制造业网格平台”项目为应用背景,对
2、服务虚拟化方法进行了尝试,并针对业务服务落实效果对相关方法进行了测试实验,实验结果表明,该方法不仅能支持半自动化的服务关联,而且在业务服务落实效果上比传统的服务关联方法有较大改进,更好地保证了最终用户所构建应用的顺利执行.关键词:业务服务,服务虚拟化,最终用户编程,最终用户,VlNCAiItlI;K一方法,服务聚类,服务转换ⅡServiceVirtualizationforEnd-UserProgramming’FangJun(ComputerSoftwareandTheory)DirectedByHanYanb
3、oTheneedsfordynamicsystemsintegrationarebecomingmoreandmorepervasiveinmanyapplicationdomains,suchase-governmenLe-commerce,supplychain,managementinhandlingcityemergencies,etc.Acommonphenomenonoftheseapplicationareasistheuncertaintyanddynamismofuserrequirements
4、.ItisanobservabletrendtoapplyEnd-User-Programming(EUP)technologiestoachievejust-in-timeapplicationconstruction.TheOrientedComputing(soc)technologiescanintegrateapplicationswithopenstandardsandIoose-coupfingstrategy,providingnewchances.However,EUPisstilladiffi
5、cultissueduetothelackofproperbusiness--levelserviceabstractionsaswellasthedividebetweenbusinessabstractionsandITservices.TosupportreliableandflexiblecorrelationbetweenbusinessabstractionsandWebservices,thethesisproposesanovelservicevirtualizationapproachtobri
6、dgingthedivide.Themajoreffortsandcontributionsinclude:Anovelapproach,calledVINCA砷尬㈣isproposedtosupportEUP.Theuniquefeaturesofourapproacharc:(1)itfacilitatesabstractionsfrombusinessandrrperspectivesseparatelyandthenrelatingthemusingvirtualizationoperations.The
7、approachcallprovideasmanyaspossibleITresourcesforagivenbusinessabstractionandhidesecondarydetails;(2)itprovidesanewmechanismforclusteringservices,whichhelpstoimprovetheefficiencyinrelatingofbusiness-levelabstractionsandWebservicesandlowertheservice·lookuptime
8、;0)Itintroducesuser-controllablepoliciesforservicetransformation,servicecompositionandservicematching.CriticalguaranteesareensuredbythesepoliciesforthefulfillmentofbusinesSservices.Weputf
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