【英文标准名称】:Informationtechnology-Opensystemsinterconnection-Models
【原文标准名称】:信息技术.开放式系统互连.模型
【标准号】:BSISO/IEC9594-2-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1997-02-15
【实施或试行日期】:1997-02-15
【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】:情报系统;数据处理;误差;布置;ASN.1;数据存储保护;数据组织;开放系统互连;数据传输;数据传送;计算机网络;信息交流;应用层(开放系统互连);验证
【英文主题词】:Applicationlayer;Dataprocessing;Directories;Informationinterchange;Informationtechnology;Models;Networkinterconnection;Opensystemsinterconnection;OSI
【摘要】:ThemodelsdefinedinthisRecommendationInternationalStandardprovideaconceptualandterminologicalframeworkfortheotherITU-TX.500SeriesRecommendations|partsofISO/IEC9594whichdefinevariousaspectsoftheDirectory.ThefunctionalandadministrativeauthoritymodelsdefinewaysinwhichtheDirectorycanbedistributed,bothfunctionallyandadministratively.GenericDSAandDSAinformationmodelsandanOperationalFrameworkarealsoprovidedtosupportDirectorydistribution.ThegenericDirectoryInformationModelsdescribethelogicalstructureoftheDIBfromtheperspectiveofDirectoryandAdministrativeUsers.Inthesemodels,thefactthattheDirectoryisdistributed,ratherthancentralized,isnotvisible.ThisRecommendation|InternationalStandardprovidesaspecializationofthegenericDirectoryInformationModelstosupportDirectorySchemaadministration.TheotherITU-TRecommendationsintheX.500Series|partsofISO/IEC9594makeuseoftheconceptsdefinedinthisRecommendation|InternationalStandardtodefinespecializationsofthegenericinformationandDSAmodelstoprovidespecificinformation,DSAandoperationalmodelssupportingparticulardirectorycapabilities(e.g.Replication):a)theserviceprovidedbytheDirectoryisdescribed(inITU-TRec.X.511|ISO/IEC9594-3)intermsoftheconceptsoftheinformationframework:thisallowstheserviceprovidedtobesomewhatindependentofthephysicaldistributionoftheDIB;b)thedistributedoperationoftheDirectoryisspecified(inITU-TRec.X.518|ISO/IEC9594-4)soastoprovidethatservice,andthereforemaintainthatlogicalinformationstructure,giventhattheDIBisinfacthighlydistributed;c)replicationcapabilitiesofferedbythecomponentpartsoftheDirectorytoimproveoverallDirectoryperformancearespecified(inITU-TRec.X.525|ISO/IEC9594-9).Thesecuritymodelestablishesaframeworkforthespecificationofaccesscontrolmechanisms.ItprovidesamechanismforidentifyingtheaccesscontrolschemeineffectinaparticularportionoftheDIT,anditdefinestwoflexible,specificaccesscontrolschemeswhicharesuitableforawidevarietyofapplicationsandstylesofuse.ThesecuritymodelisconcernedsolelywithcontrolofaccesstotheDirectoryinformation,notcontrolofaccesstotheDSAapplication-entityholdingtheinformation.DSAmodelsestablishaframeworkforthespecificationoftheoperationofthecomponentsoftheDirectory.Specifically:a)theDirectoryfunctionalmodeldescribeshowtheDirectoryismanifestedasasetofoneormorecomponents,eachbeingaDSA;b)theDirectorydistributionmodeldescribestheprincipalsaccordingtowhichtheDIBentriesandentry-copiesmaybedistributedamongDSAs;c)theDSAinformationmodeldescribesthestructureoftheDirectoryuserandoperationalinformationheldinaDSA;d)theDSAoperationalframeworkdescribesthemeansbywhichthedefinitionofspecificformsofcooperationbetweenDSAstoachieveparticularobjectives(e.g.shadowing)isstructured.
【中国标准分类号】:L79
【国际标准分类号】:35_100_01;35_100_70
【页数】:164P.;A4
【正文语种】:英语