ISO IEC TS 25025-2021.docx

TECHNICA1.SPECIFICATIONISO/IECTS25025editionFirst2021-03Informationtechno1.ogySystemsandsoftwareQua1.ityRequirementsandEva1.uation(SQuaRE)MeasurementofITservicequa1.ityTechno1.ogiesdeinformationExigencesdequa1.iteeteva1.uationdessystemesetduIogicie1.(SQuaRE)MesuredeIaqua1.iteduserviceinformatiqueCOPYRIGHTPROTECTEDDOCUMENT©IS0/1EC2021M11c<he<ivdi1.itedotherwiseS1.Rnrirftuw!<>rryH可11cho。城et1.u1.IOHai(Xt)Iinra”;ItmUrphrti<>mtoccPXin品ptittjc；ItmnPOstingontheinternetoranInunnu1.withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOatUieaddressbe1.oworISO*smemberhodyinthecountryoftherrcucstcr.三cB1.andonnct8r,GenevaPhone:t41227490111辆jtc:用洲部砾o.orgPub1.ishedinSwitzer1.andContentsForewordV7.2.1Comp1.eteness67.3Usabi1.ityConsistencjr77.3.31.earnabi1.itymeasures874Securitymeasures.107.4.3Traceabi1.itymeasures127.S.2Continuityrecoverabi1.ity127.6.1Visibi1.ity147.7Responsiveness1577.1ce一»»，167.97.9.!service18iiiPageIntroductionviScope1Normativereferences1Termsanddefinitions2Conformance3UseofITservicequa1.itymeasures35.1 ITservicequa1.itymeasurementconcepts.35.2 ApproachtoITSerViCequa1.itymeasurement3FormatusedfordocumentingtheITservicequa1.itymeasures4ITservicequa1.it)rmeasures4Z金D31-.45.3 Suitabi1.itymeasures6Genera1.measures5.3.3 Correctnessmeasures65.3.4 Appropriatenessmeasures75.3.5 measuresmeasures1.1.1 Genera1.81.1.2 Appropriatenessrecognizabi1.itymeasures81.1.4 Operabi1.ity1.1.5 Usererrorprotectionmeasures101.1.6 Accessibi1.itymeasures101.1.7 Courtesymeasures1.1.8 Genera1.111.1.9 Confidentia1.itymeasures11Integrity7.5 ITservicere1.iabi1.itymeasures127.5 1Generd1.127.6 .3ITservicemeasuresmeasures7.5.4AVa1.1.ab1.1.1.tyIDeaSUreS.147.6 Tangibi1.itymeasures147.6.1 Genera1.measures7.6.2 Professiona1.ismmeasures147.6.3 ITserviceinterfaceappearancemeasures157.7.1 Genera1.measures7.7.2 Time1.inessmeasures167.7.3 Reactivenessmeasures16ITGcnera1.adaptabi1.itymeasures7.8.2 Customizabi1.itymeasures167.8.3 Initiativemeasures17ITGenera1.maintainabi1.itymeasures7.9.2 Ana1.ysabi1.itymeasures18颂惚醐那measures18AnnexA(Informative)Contextofusingthemode1.anddifferentITservicetypes20Bib1.iography23ForewordISO(theInternationa1.OrganizationforStandardization)andIEC(theInternationa1.E1.ectrotechnica1.amunieriNF耐form1.SOth呵IfifiqiiM<t旬ratemtfee丽蛾bpidentstaai11t<<aiima1.N3tftm1.drdsbodiest1.rtMmitteesestab1.ishedbytherespectiveorganizationtodea1.withparticu1.arfie1.dsoftechnica1.activity.ISOandIECmitteesco1.1.aborateinfie1.dsofmutua1.interestOtherjnnat)narantions,governmenta1.andnon-governmenta1.,in1.iaisonwithISOandIEC,a1.soTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare铁Fn用性"对月位野H曲林觇Uaip国蜘Hert三4q峥期蝴UsUKda1.theedi1.53川谷Of1.h(?ISO/IECDirectives,Part2(seewww.iso.org/direc1.ivesorwww.iec.ch/mcnibers,expertsrefdocs).以田加由mghuwn蚣用好6相同而4KA耶胡陵b1.c西油MR则他y幅视HIf同出VUb)Carights.Detai1.sofanypatentrightsidentifiedduringthedeve1.opmentofUe4HiHUwUbeintheIntroductionand/orontheISO1.istofpatentdec1.arationsreceived(seewww.iso.org/patents)ortheIEC1.istofpatentdec1.arationsreceived(seepatents.iec.ch).Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsementtpwn;SiOnSeXmdn蚓MHbeon心碗ryW9ner11,ofa内曲dards,1.hZnwt3HOut1.SodfitftommhindWomdT*de(kgacization(WTO)，h。丁依hicQM11论sSTrade(TBT)1seewww.iso.org/isoforeword.htn1.Inthe1EC.secwww.iec.ch/understanding-standards.M帕taw健SC品舟峋妍d0帆痛ft喻酬丽ngCommitteeISO/IECJTC1,Informationtechno1.ogy,Anyfeedbackorquestionsonthisdocumentshou1.dIwdirectedtotheuser'srationa1.standardsbody.A1i!>tingofthesebodiescanbefoundatvvw1÷siMHmembeF*r7htm1.andtwwHeechnatHHa1.Introduction0.1Genera1.Seriesdefineddocunicnts.whichprovidescansctUsedmeasuresspecifyingrequirements,CharaCtSiStiCSofandeva1.uatingintende<ioftoqua1.ityexhaustive,thereforedomentthisdocumentbasedencouragedpractica1.va1.ue,necessary.- 490.2Qua1.itymeasurementdivision- measuring25020Qua1.itycharacteristicsframework：providesarcfcrenccmodc1.mode1.divison.guide1.inefore1.ementsmeasures.examp1.esofqua1.itymeasuree1.ementsthatcanbeusedtoconstructSOftWaremeasurementftmctionsforthequa1.itycharacteristicsinthequa1.ityinusenwde1.- measurementfunctionsMeasurementqua1.itycharacteristicsprovidesmeasuresmode1.inc1.udingassociatedrequirementsandeva1.uationofITservicequa1.ity.viThisdocumentisapartoftheSystemsandSOftWareQua1.ityRequirementsandEvaIuation(SQuaRE)areofinISO/IECTS25011.ItbeofforForthequa1.i