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【英文标准名称】:Informationtechnology-InternationalstandardizedprofilesFVT3nn-Virtualterminalbasicclass-Registerofattributeassignmenttypedefinitions-Part4:FVT322-FontassignmenttypeNo.2
【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4部分:FVT322.字型分配类型No.2
【标准号】:ISO/IECISP11186-4-1997
【标准状态】:作废
【国别】:国际
【发布日期】:1997-12
【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】:字符集;标准界面;开放系统互连;网络互连;定义;信息交换;国际注册;分配码;数据处理;信息技术
【英文主题词】:Assignmentcodes;Charactersets;Dataprocessing;Definitions;Informationinterchange;Informationtechnology;Internationalregister;Networkinterconnection;OSI;Standardizedprofiles
【摘要】:1GeneralTheconceptofProfilesforOSI,andthestructureoftheInternationalStandardizedProfilesthatdocumentthem,aredefinedinISO/IECTR10000-1.SuchProfilesaredividedintoanumberofdifferentclassesandsub-classes.Twooftheseclassescontainsub-classescomprisingfunctionsoftheVirtualTerminalBasicClassServiceandProtocolspecifiedinthebasestandardsISO9040andISO9041.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-ProfilesandotherVTE-profileargumentvalues.ThespecificationoftheselectionrequiredtorealiseaparticularfunctionandtopromoteinteroperabilityconstitutesaVirtualTerminalA-ProfilewithintheframeworkofISO/IECTR10000.ThethreeInternationalRegistersofVTinformationobjectsandthespecificationsofVTApplicationProfilesareeachpublishedasaseparatemulti-partISPasfollows:—ISO/IECISP11184istheRegisterofVTE-profiles;—ISO/IECISP11185istheRegisterofcontrolobjecttypedefinitions;—ISO/IECISP11186istheRegisterofattributeassignmenttypedefinitions;—ISO/IECISP11187containsthespecificationsofVTApplicationProfiles.ThispartofISO/IECISP11186providesthespecificationofafontassignmenttypethatmaybeusedtospecifyafontassignmentvalueinwhichdifferentfontpropertyvaluesmaybeassignedtodifferentcharacterswithinasingleVTcharacter-repertoire.ThisfontassignmenttypeisintendedforuseinconjunctionwitharepertoireassignmenttypethatpermitsthecharactersofmorethanonescripttobepresentinasingleVTcharacter-repertoire.Itisparticularlysuitedforuseinconjunctionwiththerepertoireassignmenttype,forISO/IEC10646whosespecificationisgiveninISO/IECISP11186-2.Itisintendedthatfontpropertyvaluesshouldbeassignedonascript-by-scriptbasis,forexamplesothatscriptswithaleft-to-rightwritingmodeandwitharight-to-leftwritingmodemaycoexistwithinasingleVTcharacter-repertoire.2PositionwithinthetaxonomyThetaxonomyofInternationalStandardizedProfilesforOSIislaiddowninISO/IECTR10000-2.Withintheclassificationschemeofthistaxonomy,theOSIProfilesspecifiedinthisInternationalStandardizedProfileareintheVirtualTerminalRegisteredObjectsub-classoftheclassofInterchangeFormatandRepresentationProfiles.AProfilewithinthissubc
【中国标准分类号】:L79
【国际标准分类号】:35_100_05
【页数】:6P;A4
【正文语种】:英语