作者:标准资料网 时间:2024-05-02 04:30:54   浏览:8727   来源:标准资料网

【英文标准名称】:Informationtechnology-InternationalstandardizedprofilesFVT2nn-Virtualterminalbasicclass-Registerofcontrolobjecttypedefinitions-FVT2113-Fielddefinitionmanagementcontrolobject
【原文标准名称】:信息技术.国际标准数据区FVT2nn.虚拟终端基本分类.控制对象类型定义寄存器.FVT2113.字段定义管理控制对象
【标准号】:BSISO/IECISP11185-15-1995
【标准状态】:现行
【国别】:英国
【发布日期】:1995-12-15
【实施或试行日期】:1995-12-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:管理;通信规程;协议;信息交流;数据布置;目标(数据处理);计算机间通信;开放系统互连
【英文主题词】:Dataprocessing;Informationinterchange;Informationtechnology;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,mayinturnreferencethedefinitionsofVTcontrolobjecttypesandassignmenttypes.TheseVTE-profiles.controlobjecttypesandassignmenttypesarethusinformationstructuresthatrequireexplicitreferencewithintheVTprotocol.Particularinstancesofthesestructuresarefullydefinedwithinthebasestandards,butthebasestandardsalsoprovideforfurtherinstancestobedefinedbyregistration.EachregisteredinstanceconstitutesanF-ProfilewithintheframeworkofISO/IECTR10000.TheVirtualTerminalBasicClassServiceandProtocolmaybeusedtorealiseawiderangeofdistinctfunctions.ParticularfunctionsmayberealisedthroughtheselectionofappropriateVTfunctionalunits,F-ProfilesandotherVTE-profileargumentvalues.ThespecificationoftheselectionrequiredtorealiseaparticularfunctionandtopromoteinteroperabilityconstitutesaVirtualTerminalA-ProfilewithintheframeworkofISO/IECTR10000.ThethreeInternationalRegistersofVTinformationstructuresandthespecificationsofVTApplicationProfilesareeachpublishedasaseparatemulti-partISPasfollows:—ISO/IECISP11184istheRegisterofVTE-profiles;—ISO/IECISP11185istheRegisterofcontrolobjecttypedefinitions;—ISO/IECISP11186istheRegisterofassignment-typedefinitions;—ISO/IECISP11187containsthespecificationsofVTApplicationProfiles.ThispartofISO/IECISP11185containsthedefinitionofacontrolobjecttypethatmaybeusedtoenhancethefielddefinitioncapabilitiesdefinedintheISO9040andISO9041VTstandardsinordertoprovideaflexiblemechanismforusingandupdatingfielddefinitionrecords.2PositionwithinthetaxonomyThetaxonomyofInternationalStandardizedProfilesforOSIislaiddowninISO/IECTR10000-2.Withintheclassificationschemeofthistaxonomy,theOSIProfilesspecifiedinthisInternationalStandardizedProfileareintheVirtualTerminalRegisteredObjectsub-classoftheclassofInterchangeFormatandRepresentationProfiles.AProfilewithinthissubclasshasaProfileidentifieroftheformFVTabc,whereabcisastructurednumericalidentifierthatidentifiesthepositionoftheProfilewithineachofthethreelevelsofsubdivisionofthesubclass.Thevaluesofaandbaresingledigitsbutcisanintegerthatisnotnecessarilyasingledigit.InprincipletheISOVirtualTerminalmodelallowsformultipleclassesofoperation,althoughatthetimeofpublicationofthisInternationalStandardizedProfileonlytheBasicClasshasbeendefined.Thevalueoftheidentifiercomponentadistinguishesbetween
【中国标准分类号】:L78
【国际标准分类号】:35_100_05
【页数】:20P.;A4
【正文语种】:英语