简介：Inthispaper,aframeworkispresentedforaddingageneralcommandrecoveryfacilitytouserinterface.Asimplemodelofinteractivesystemisdiscussedandfourmetacommands.UNDO,REDO.SKIPBACK,andSKIPFORWARD,aredefined.Thedouble-linkedlistisusedtoorganizetherecoveryinformationinanaturalwayforeasyimplementation.Applicationsoftheframeworktovariousdemandsofcommandrecoveriesshowthattheuseoftheframeworkisveryeasyandconvenient.

简介：Anapproachtosupportinguserinterfacesusinganattributegrammarcombinedwithaneventmodelisdescribed.Themainemphasisishowtorepresentamulti-threaddialoguemodelindirectmanipulationuserinterfaces.Itisshownthatcontrolsequencewithindialogues,communicationwithotherdialogues,andsomecomputationsforapplicationscanbespecifiedwithasyntacticandsemanticnotation.Theattributegrammarspecificationcanbeimplementedusinganattributegrammarintepreterembeddedintherun-timestructuresupportingcommunication,synchronization,anddialogueexecuton.

简介：Engineeringapplicationdomainsneeddatabasemanagementsystemstosupplythemwithagoodmeansofmodeling,ahighdataaccessefficiencyandalanguageinterfacewithstrongfunctionality.Thispaperpresentsasemantichypergraphmodelbasedonrelations,inordertoexpressmany-to-manyrelationsamongobjectsbelongingtodifferentsemanticclassesinengineeringapplications.Amanagementmechanismexpressedbythemodelandthebasicdataofengineeringdatabasesaremanagedinmainmemory.Especially,differentobjectsarelinkedbydifferentkindsofsemanticsdefinedbyusers,thereforethetableswap,therecordswapandsomeunnecessaryexaminationsarreducedandtheaccessefficiencyoftheengineeringdataisincreased.Clanguageinterfacethatincludessomegenericandspecialfunctionalityisproposedforcloserconnectionwithapplicationprograms.

简介：从除一个地点驱动的模式以外的一个数据驱动的通讯模式继承，命名数据联网(NDN)把更好的支持提供给网络层dataflow。然而，应用程序开发者不得不处理复杂任务，例如数据分割，包确认，和流动控制，由于在网络层上的合适的运输层协议的缺乏。在这研究，我们设计一个dataflow面向的编程接口为NDN提供运输策略，它极大地在开发应用程序改进效率。这个接口介绍检索策略根据出版模式，基于当前的网络地位和数据产生控制dataflow在采用一个适应ADUpipelining算法的不同数据评估的二个应用程序数据单位(ADU)。接口也提供网络测量策略监视许多影响应用程序表演的批评度量标准。我们由实现流的一个录像验证我们的接口的功能和性能在世界范围的NDN试验床上跨越11个时区的申请。我们的实验证明接口罐头高效地支持开发高效、驾驶dataflow的NDN应用程序。