SAE AS50881 Wiring Aerospace Vehicle
时间:2024-05-15 11:53:24 来源: 标准资料网 作者：标准资料网 阅读：9128
Product Code:SAE AS50881
Title:Wiring Aerospace Vehicle
Issuing Committee:Ae-8a Wiring Systems Installation Committee
Scope:Amendment 1 of AS50881B.
【英文标准名称】:Informationtechnology-Qualityofservice-Guidetomethodsandmechanisms
【原文标准名称】:信息技术服务质量方法和机制的指南
【标准号】:ISO/IECTR13243-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-11
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:信息技术;数据处理;网络互连;定义;质量;数据服务;开放系统互连;信息交换
【英文主题词】:Dataprocessing;Dataservices;Definition;Definitions;Informationinterchange;Informationtechnology;Networkinterconnection;OSI;Quality
【摘要】:ThisRecommendation|TechnicalReportusestheconceptsandterminologyoftheQualityofServiceFramework,ITU-TRec.X.641|ISO/IEC13236.Itisintendedtosupportthosedesigning,testingandspecifyingInformationTechnology(IT)systems,datacommunicationsservicesandprotocols,thosedefiningQoSmanagementfunctionsandQoSmechanismsforparticulardataenvironmentsandtechnologies,andthoseengagedinotherQoS-relatedactivitiessuchassystemtesting,byprovidingasourceofreferencematerialonQoS.Todothis,itbringstogetherreferencestomethodsandmechanismsfromavarietyofsources,andinsomecasesdocumentstheminastylewhichwillpermittheiruseinmanydatadifferentenvironments.Theterm"method"isusedinaverygeneralsensetoincludeanyprocess,function,etc.,thatisrelevanttoQoSatanystageinthelife-cycleofasystem.ThecriterionforreferencetoorinclusionofdefinitionsorspecificationsofQoSmethodsandmechanismsinthisRecommendation|TechnicalReportisthattheyarethoughttobeofpotentiallywiderapplicationthansolelytheenvironmentforwhichtheywereoriginallydeveloped,althoughstillinadatacontext.Clause5identifiessourcesofdefinitionsofQoScharacteristicsandrelatedinformation.Clauses6,7and8discussmethodsandmechanismsappropriatetothephasesofQoSactivitythataredefinedintheQoSFramework:clause6dealswiththepredictionphase,clause7withtheestablishmentphaseandclause8withtheoperationalphase.Clause9describesmethodsforverificationofsystembehaviourrelatedtoQoS.Clause10coverstherelationshipsbetweenthisRecommendation|TechnicalReportandRecommendations,InternationalStandardsorTechnicalReportsthatreferenceit.ThisRecommendation|TechnicalReportcontainsdetaileddefinitionsofsomeQoSmechanisms.Somepeer-to-peerQoSnegotiationmechanismsaredefinedin7.1.1.Theseinvolvetwopeerentitiesandinmostcasesalsotheproviderofacommunicationsservicebetweenthem.Subclause7.1.2providesaninitialspecificationofsomeQoSnegotiationmechanismsfor1×Nmulticastconnections,basedonthosein7.1.1.Subclause7.1.3discussesQoSnegotiationmechanismsforM×Nmulticast,someofwhichcanmakeuseofthosein7.1.2.Subclause8.2.1definessomeQoSmanagementmechanismstosupporttime-criticalapplications.ThisRecommendation|TechnicalReportdoesnotincludemethodsandmechanismsforsecurity.
【中国标准分类号】:M11
【国际标准分类号】:35_020;35_100_01
【页数】:28P;A4
【正文语种】:英语