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【英文标准名称】:Informationtechnology-OpenSystemsInterconnection-TheDirectory:Models
【原文标准名称】:信息技术.开放系统互连.目录:模型
【标准号】:ISO/IEC9594-2-2005
【标准状态】:作废
【国别】:国际
【发布日期】:2005-12
【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/SC6
【标准类型】:()
【标准水平】:()
【中文主题词】:应用层;电信设备;数据网络;定义;人名地址录;信息交换;信息技术;模型;网络互连;开放系统互连;电信
【英文主题词】:Applicationlayer;Communicationservice;Datanetwork;Definitions;Directories;Informationinterchange;Informationtechnology;Models;Networkinterconnection;Opensystemsinterconnection;OSI;Telecommunication;Telecommunications
【摘要】:ThemodelsdefinedinthisRecommendation|InternationalStandardprovideaconceptualandterminologicalframeworkfortheotherITU-TX.500-seriesRecommendations|partsofISO/IEC9594whichdefinevariousaspectsoftheDirectory.ThefunctionalandadministrativeauthoritymodelsdefinewaysinwhichtheDirectorycanbedistributed,bothfunctionallyandadministratively.GenericDSAandDSAinformationmodelsandanOperationalFrameworkarealsoprovidedtosupportDirectorydistribution.ThegenericDirectoryInformationModelsdescribethelogicalstructureoftheDIBfromtheperspectiveofDirectoryandAdministrativeUsers.Inthesemodels,thefactthattheDirectoryisdistributed,ratherthancentralized,isnotvisible.ThisRecommendation|InternationalStandardprovidesaspecializationofthegenericDirectoryInformationModelstosupportDirectorySchemaadministration.TheotherITU-TRecommendationsintheX.500series|partsofISO/IEC9594makeuseoftheconceptsdefinedinthisRecommendation|InternationalStandardtodefinespecializationsofthegenericinformationandDSAmodelstoprovidespecificinformation,DSAandoperationalmodelssupportingparticulardirectorycapabilities.Thesecuritymodelestablishesaframeworkforthespecificationofaccesscontrolmechanisms.ItprovidesamechanismforidentifyingtheaccesscontrolschemeineffectinaparticularportionoftheDIT,anditdefinesthreeflexible,specificaccesscontrolschemeswhicharesuitableforawidevarietyofapplicationsandstylesofuse.Thesecuritymodelalsoprovidesaframeworkforprotectingtheconfidentialityandintegrityofdirectoryoperationsusingmechanismssuchasencryptionanddigitalsignatures.ThismakesuseoftheframeworkforauthenticationdefinedinITU-TRec.X.509|ISO/IEC9594-8aswellasgenericupperlayerssecuritytoolsdefinedinITU-TRec.X.830|ISO/IEC11586-1.DSAmodelsestablishaframeworkforthespecificationoftheoperationofthecomponentsoftheDirectory.
【中国标准分类号】:L79
【国际标准分类号】:35_100_70
【页数】:234P.;A4
【正文语种】:英语


【英文标准名称】:Informationtechnology-Casefor120mmDVD-RAMdisks
【原文标准名称】:信息技术120mmDVD-RAM光盘的情况
【标准号】:ISO/IEC16825-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-05
【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】:Datamedia;Dataprocessing;Datastorage;Dimensions;DVD;Envelopes;Flexibledisks;Informationtechnology;Opticaldisks;RAM;Read-/writememories;Testing;Trackformats
【摘要】:ThisInternationalStandardspecifiesthecharacteristicsofacaseforusewith120mmDVD-RAMdisksasspecifiedinISO/IEC16824.ThisInternationalStandardspecifiesthreerelated,butdifferentimplementationsofsuchcases,viz.Type1Providesacaseforaone-sided(Type1S)oratwo-sided(Type2S)DVD-RAMdisksuchthatthediskcannotberemovedfromthecase.Thiscaseisreversible.Type2Providesacaseforaone-sidedDVD-RAMdisk(TypeIS)suchthatthediskmayberemovedfromthecase.Thiscaseisnotreversible.Type3Providesacaseintowhichaone-sidedDVD-RAMdisk(TypeIS)maybeinserted,thenusedasacartridge.Thiscaseisnotreversible.ThisInternationalStandardspecifies-theenvironmentsinwhichthecasesaretobeoperatedandstored;-thedimensionalandmechanicalcharacteristicsofthecase,soastoprovidemechanicalinterchangeabilitybetweendataprocessingsystems;ThisInternationalStandardprovidesformechanicalinterchangebetweenopticaldiskdrives.Togetherwith120mmDVD-RAMdisksaccordingtoISO/IEC16824andastandardforvolumeandfilestructure,itprovidesforfulldatainterchangebetweendataprocessingsystems.
【中国标准分类号】:L64
【国际标准分类号】:35_220_30
【页数】:52P.;A4
【正文语种】:英语