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【英文标准名称】:Informationtechnology-InternationalStandardizedProfilesFVT3nn-VirtualTerminalBasicClass-Registerofattributeassignmenttypedefinitions-Part3:FVT312-RepertoireassignmenttypeforISO/IEC2022Level2
【原文标准名称】:信息技术国际标准化轮廓FVT3nn虚拟终端基本类属性分配类型定义的登记册第3部分:FVT312ISO/IEC2022级2用的字符表分配类型
【标准号】:ISO/IECISP11186-3-2000
【标准状态】:作废
【国别】:国际
【发布日期】:2000-02
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Charactersets;Coordination;Dataprocessing;Definitions;Informationinterchange;Informationtechnology;Lists;Networkinterconnection;OSI;Standardizedprofiles;Virtualterminals
【摘要】:TheconceptofProfilesforOSI,andthestructureoftheInternationalStandardizedProfilesthatdocumentthem,aredefinedinISO/IECTR10000-1.SuchProfilesaredividedintoanumberofdifferentclassesandsub-classes.Twooftheseclassescontainsub-classescomprisingfunctionsoftheVirtualTerminalBasicClassServiceandProtocolspecifiedinthebasestandardsISO/IEC9040andISO/IEC9041.ThesearetheApplicationProfiles(A-Profiles)andtheInterchangeFormatandRepresentationProfiles(F-Profiles).TherelationshipbetweenA-ProfilesandF-Profilesisdescribedin7.3.2ofISO/IECTR10000-1andisasfollows.ApplicationLayerbasestandardsrequire,implicitlyorexplicitly,thestructureofinformationcarriedorreferencedbythemtobespecifiedforeachinstanceofcommunication.ItisthepurposeofF-Profilestospecifysuchinformationstructures.ParticularfunctionalrequirementsmaythenbemetbythecombinationofanA-ProfilewithoneormoreF-Profiles.EstablishmentofaVT-associationinvolvestheselectionbynegotiationofaparticularVirtualTerminalEnvironmentprofile(VTE-profile),andofparticularvaluesforanyargumentsofthatVTE-profile.TheVTE-profilespecification,andpossiblyalsothevaluesofcertainVTE-profilearguments,mayinturnreferencethedefinitionsofVTcontrolobjecttypesandattributeassignmenttypes.TheseVTE-profiles,controlobjecttypesandattributeassignmenttypesarethereforeInformationObjectsthatrequireexplicitreferencewithintheVTprotocol.ParticularinstancesoftheseInformationObjectsarefullydefinedwithinthebasestandards,butthebasestandardsalsoprovideforfurtherinstancestobedefinedbyregistration.EachregisteredinstanceconstitutesanF-ProfilewithintheframeworkofISO/IECTR10000.TheVirtualTerminalBasicClassServiceandProtocolmaybeusedtorealiseawiderangeofdistinctfunctions.ParticularfunctionsmayberealisedthroughtheselectionofappropriateVTfunctionalunits,F-Profilesandother,VTE-profileargumentvalues.ThespecificationoftheselectionrequiredtorealiseaparticularfunctionandtopromoteinteroperabilityconstitutesaVirtualTerminalA-ProfilewithintheframeworkofISO/IECTR10000.ThethreeInternationalRegistersofVTinformationobjectsandthespecificationsofVTApplicationProfilesareeachpublishedasaseparatemulti-partISPasfollows:—ISO/IECISP11184istheRegisterofVTE-profiles;—ISO/IECISP11185istheRegisterofcontrolobjecttypedefinitions;—ISO/IECISP11186istheRegisterofattributeassignmenttypedefinitions;—ISO/IECISP11187containsthespecificationsofVTApplicationProfiles.ThispartofISO/IECISP11186containsthedefinitionofarepertoireassignmenttypeforwhicharepertoireassignmentvalueidentifiestheuseofalevel2versionofthe8-bitcodestructureofISO/IEC2022(multiplepre-designatedcharactersets,withoutlockingshifts).SuchaversionofISO/IEC2022providesaccesstoG2andG3codeelements,inadditiontotheGOandG1codeelementsthatmaybeaccessedbymeansofthedefaultrepertoireassignmenttypespecifiedinISO/IEC9040.ThisrepertoireassignmenttypealsoincludesprovisionforrestrictionoftherepertoireofcharacterstoasubsetofthosethatcanberepresentedbytheselectedversionofISO/IEC2022.TherestrictionoftherepertoiremaybebymeansoutsidethescopeofISO/IEC2022.InparticulartherepertoiremaybespecifiedaccordingtoISO/IEC10646-1eventhoughthecodingforinformationinterchangeisaccordingtoalevel2versionofISO/IEC2022.ThisfacilityshouldassistinterworkingduringmigrationofapplicationsfromISO/IEC2022codingtoISO/IEC10646-1coding.NOTE1TheuseoflockingshiftswithinthecodestructureofISO/IEC2022isnotconsistentwiththeconceptofacharacter-repertoireasdefinedinISO/IEC90
【中国标准分类号】:
【国际标准分类号】:35_100_05
【页数】:22P;A4
【正文语种】:英语