SIST EN 302 092-4 V1.1.1:2005

• Abstract:

  Develop part 4 (ATS&PIXIT for the user)

• Status: Published
• Publication Date: 31-Dec-2004
• ICS: 33.040.35 - Telephone networks
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jan-2005
• Due Date: 01-Jan-2005
• Completion Date: 01-Jan-2005
• Mandate: BC-T-338
• Ref Project: ETSI EN 302 092-4 V1.1.1 (2000-09) - Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN); Digital Subscriber Signalling System No. two (DSS2) and Broadband QSIG (B-QSIG) protocols; Call control specification in separated call and bearer control environment; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification

SIST EN 302 092-4 V1.1.1:2005 is the Slovenian adoption of ETSI EN 302 092-4 V1.1.1 for Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN) call control. It specifies the Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma for the Call Control protocol in a separated call and bearer control environment. It is aimed at people who need to test, document, or audit conformance of an implementation at the QB, SB, TB, and co-incident SB/TB reference points.

What does SIST EN 302 092-4 V1.1.1:2005 specify?

SIST EN 302 092-4 V1.1.1:2005 specifies the ATS and partial PIXIT proforma for the Call Control protocol defined in EN 302 092-1. The document is structured as clauses 1 to 9, followed by three normative annexes.

Annex	What it covers
Annex A	Protocol Conformance Test Report (PCTR) proforma
Annex B	Partial PIXIT proforma
Annex C	ATS in TTCN graphical and machine-processable forms

Clause 4 explains the abstract test method used. Clause 5 states the treatment of untestable test purposes. Clause 6 maps test purposes to test cases. Clauses 7 to 9 define conformance for the PCTR, PIXIT, and ATS material.

What are the key requirements of SIST EN 302 092-4 V1.1.1:2005?

The standard is built around conformance testing of Call Control implementations, not around protocol behavior itself. In practice, it tells a test laboratory how to structure the test system, what evidence to record, and how to relate test purposes to executable tests.

Abstract test method and test roles

Clause 4 uses a combined remote and multi-party test method. The Main Test Component (MTC) controls one or more Parallel Test Components (PTCs), and the test system uses several Point(s) of Control and Observation (PCO) such as L0, L1, and O. This matters because some behaviors are observed on the interface under test, while other interfaces are used only to stimulate the implementation.

Clause 4 also says verdicts are assigned from observations at the main interface under test. Events at the operator PCO are used for control, not for verdicts. For a reader planning a test setup, this means the lab must separate what it controls from what it judges.

Test purpose mapping

Clause 6 states that the identifiers used for Test Purposes (TPs) are reused as test case names. That gives a direct one-to-one mapping between the TSS&TP work and the ATS cases. In practice, this makes test planning and traceability easier when matching a requirement, a test purpose, and the executed case.

Conformance of the test report

Clause 7 requires a Protocol Conformance Test Report (PCTR) to follow the proforma in Annex A and the template rules of ISO/IEC 9646-5. The report includes identification, IUT status, static and dynamic conformance summaries, and a test campaign report. For users, this is the document that records what was tested and how the result was judged.

Conformance of PIXIT material

Clause 8 requires the partial PIXIT proforma to conform to Annex B, with extra questions allowed when needed to prepare the Means of Testing (MOT) for a specific IUT. This matters because different implementations may need different parameter values, release causes, or timer settings before a test run can start.

Conformance of the ATS

Clause 9 requires an MOT and an Executable Test Suite (ExTS) to comply with ISO/IEC 9646-4 and to be technically equivalent to the ATS in Annex C. The annexed ATS is published in TTCN graphical form and TTCN machine-processable form. That gives implementers a ready-made test suite structure that can be realized in tools.

What terms does SIST EN 302 092-4 V1.1.1:2005 define?

• Abstract Test Suite (ATS) - the collection of abstract test cases used to specify conformance tests.
• Abstract Test Method (ATM) - the method used to organize control and observation during testing.
• Implementation Under Test (IUT) - the implementation whose protocol behavior is being assessed.
• System Under Test (SUT) - the wider system that contains the IUT and related functions.
• Main Test Component (MTC) - the component that controls the test and assigns verdicts at the main interface.
• Parallel Test Component (PTC) - a component used to control or stimulate other interfaces during a multi-party test.
• Point of Control and Observation (PCO) - the interface point where the test system controls and observes behavior.
• Protocol Implementation eXtra Information for Testing (PIXIT) - implementation-specific information needed to prepare and run tests.

Who uses SIST EN 302 092-4 V1.1.1:2005?

SIST EN 302 092-4 V1.1.1:2005 is used by conformance test laboratories, test realisers, and equipment suppliers that need to validate Call Control implementations for B-ISDN and B-PISN. It is also used by clients commissioning testing, because it defines the report forms, PIXIT data, and ATS structure needed for a formal test campaign. In practice, it supports test preparation, execution, and reporting for protocol conformance assessment.

Which standards are used with SIST EN 302 092-4 V1.1.1:2005?

This part depends on EN 302 092-1 for the protocol specification, EN 302 092-2 for the PICS proforma, and EN 302 092-3 for the Test Suite Structure and Test Purposes. It also relies on ISO/IEC 9646-1 through ISO/IEC 9646-5 for the conformance testing framework, ATS specification, TTCN notation, test realization, and requirements on test laboratories and clients.

What does the SIST EN 302 092-4 V1.1.1:2005 document contain?

Annex A gives a PCTR form with sections for identification, IUT identification, testing environment, limits and reservations, conformance status, static and dynamic summaries, and observations. Annex B provides the partial PIXIT proforma with fields for the test laboratory, client, SUT, protocol information, release cause values, parameter values, and test management timers. Annex C contains the ATS in TTCN.GR and TTCN.MP forms and notes that the two forms are equivalent.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SHFLILNDFLMDBroadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN); Digital Subscriber Signalling System No. two (DSS2) and Broadband QSIG (B-QSIG) protocols; Call control specification in separated call and bearer control environment; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)33.040.35Telefonska omrežjaTelephone networksICS:Ta slovenski standard je istoveten z:EN 302 092-4 Version 1.1.1SIST EN 302 092-4 V1.1.1:2005en01-januar-2005SIST EN 302 092-4 V1.1.1:2005SLOVENSKI
STANDARD
ETSIEN302092-4V1.1.1(2000-09)EuropeanStandard(Telecommunicationsseries)BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2)andBroadbandQSIG(B-QSIG)protocols;Callcontrolspecificationinseparatedcallandbearercontrolenvironment;Part4:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationSIST EN 302 092-4 V1.1.1:2005

ETSIETSIEN302092-4V1.1.1(2000-09)2ReferenceDEN/SPAN-05154-4KeywordsATS,B-ISDN,B-ISUP,B-QSIG,broadband,control,DSS2,PIXIT,protocolETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:[phone]Fax:[phone]SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:[e-mail]opartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 302 092-4 V1.1.1:2005

ETSIETSIEN302092-4V1.1.1(2000-09)3ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Definitionsandabbreviations.73.1Definitions.73.2Abbreviations.84AbstractTestMethod.94.1DescriptionofATMused.94.2ConventionsfortestcomponentsandPCOs.95Untestabletestpurposes.116ATStoTPmap.117PCTRconformance.118PIXITconformance.119ATSConformance.12AnnexA(normative):ProtocolConformanceTestReport(PCTR)proforma.13A.1Identificationsummary.13A.1.1Protocolconformancetestreport.13A.1.2IUTidentification.13A.1.3Testingenvironment.13A.1.4Limitsandreservations.14A.1.5Comments.14A.2IUTConformancestatus.14A.3Staticconformancesummary.14A.4Dynamicconformancesummary.15A.5Staticconformancereviewreport.15A.6Testcampaignreport.16A.7Observations.18AnnexB(normative):PartialPIXITproforma.19B.1Identificationsummary.19B.2Abstracttestsuitesummary.19B.3Testlaboratory.19B.4Client(oftheTestLaboratory).20B.5SUT.20B.6Protocolinformation.21B.6.1Protocolidentification.21B.6.2Releasecausevalues.21B.6.3ParameterValues.21B.6.4Testmanagementtimers.22SIST EN 302 092-4 V1.1.1:2005

ETSIETSIEN302092-4V1.1.1(2000-09)4AnnexC(normative):AbstractTestSuite(ATS).23C1TheTTCNGraphicalform(TTCN.GR).23C2TheTTCNMachineProcessableform(TTCN.MP).23History.24SIST EN 302 092-4 V1.1.1:2005

ETSIETSIEN302092-4V1.1.1(2000-09)5IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeServicesandProtocolsforAdvancedNetworks(SPAN).Thepresentdocumentispart4ofamulti-partstandardcoveringtheDigitalSubscriberSignallingSystemNo.2(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7)TSS&TPfortheBroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN)CallControl,asdescribedbelow:Part1:"Protocolspecification";Part2:"ProtocolImplementationConformanceStatement(PICS)proformaspecification";Part3:"TestSuiteStructureandTestPurposes(TSS&TP)specification";Part4:"AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecification".NationaltranspositiondatesDateofadoptionofthisEN:25August2000DateoflatestannouncementofthisEN(doa):30November2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31May2001DateofwithdrawalofanyconflictingNationalStandard(dow):31May2001SIST EN 302 092-4 V1.1.1:2005

ETSIETSIEN302092-4V1.1.1(2000-09)61ScopeThepresentdocumentprovidestheAbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformafortheCallControlprotocolasspecifiedinEN302092-1[1].ThisfourthpartofEN302092seriesisapplicabletotheCallControlprotocolattheQB,SB,TBandco-incidentSB/TBreferencepointswithin,betweenandattheaccesstoBroadbandPrivateIntegratedServicesNetworksandwithin,betweenandattheaccesstopublicBroadbandIntegratedServicesDigitalNetworks.AfurtherpartofthepresentdocumentspecifiestheTestSuiteStructureandTestPurposes(TSS&TP)relatedtothisATSandpartialPIXITproforma.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.[1]ETSIEN302092-1(V1.1):"BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7);Callcontrolinaseparatedcallandbearercontrolenvironment;Part1:Protocolspecification".[2]ETSIEN302092-2(V1.1):"BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7);Callcontrolinaseparatedcallandbearercontrolenvironment;Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecification".[3]ETSIEN302092-3(V1.1):"BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7);Callcontrolinaseparatedcallandbearercontrolenvironment;Part3:TestSuiteStructureandTestPurposes(TSS&TP)specification".[4]ISO/IEC9646-1:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework,Part1:Generalconcepts".[5]ISO/IEC9646-2:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework,Part2:AbstractTestSuiteSpecification".[6]ISO/IEC9646-3:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework,Part3:TheTreeandTabularCombinedNotation".[7]ISO/IEC9646-4:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework,Part4:Testrealization".[8]ISO/IEC9646-5:"Informationtechnology-OpenSystemsInterconnection-Conformancetestingmethodologyandframework;Part5:Requirementsontestlaboratoriesandclientsfortheconformanceassessmentprocess".SIST EN 302 092-4 V1.1.1:2005

ETSIETSIEN302092-4V1.1.1(2000-09)73Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapplyinadditiontothedefinitionsinEN302092-1[1]:Abstracttestcase:refertoISO/IEC9646-1[4]AbstractTestMethod(ATM):refertoISO/IEC9646-1[4]AbstractTestSuite(ATS):refertoISO/IEC9646-1[4]ImplementationUnderTest(IUT):refertoISO/IEC9646-1[4]Lowertester(LT):refertoISO/IEC9646-1[4]ProtocolImplementationConformanceStatement(PICS):refertoISO/IEC9646-1[4]PICSproforma:refertoISO/IEC9646-1[4]ProtocolImplementationeXtraInformationforTesting(PIXIT):refertoISO/IEC9646-1[4]PIXITproforma:refertoISO/IEC9646-1[4]PointofControlandObservation(PCO):refertoISO/IEC9646-1[4]SystemUnderTest(SUT):refertoISO/IEC9646-1[4]TestPurpose(TP):refertoISO/IEC9646-1[4]UpperTester(UT):refertoISO/IEC9646-1[4]SIST EN 302 092-4 V1.1.1:2005

ETSIETSIEN302092-4V1.1.1(2000-09)83.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:APDUApplicationProtocolDataUnitATMAbstractTestMethodATSAbstractTestSuiteDSS2DigitalSubscriberSignallingSystemNo.twoB-ISDNBroadbandIntegratedServicesDigitalNetworkB-PISNBroadbandPrivateIntegratedServicesNetworkB-QSIGBroadbandInter-ExchangeSignallingSystemCCCallControlCC0CallIdlestateCC1CallInitiatedstateCC2OutgoingCallProceedingstateCC3CallReadystateCC4CallPresentstateCC5IncomingCallProceedingstateCC6AwaitCallCompletionstateCC7CallActivestateCC8CallReleaseRequeststateCC9CallReleaseIndicationstateCMCo-ordinationMessageCPCo-ordinationPointExTSExecutableTestSuiteIUTImplementationUnderTestLTLowerTesterMOTMeansOfTestingMTCMainTestComponentPCOPointofControlandObservationPDUProtocolDataUnitPICSProtocolImplementationConformanceStatementPIXITProtocolImplementationeXtraInformationforTestingPTCParallelTestComponentSUTSystemUnderTestTCPTestCo-ordinationProceduresTPTestPurposeTTCNTreeandTabularCombinedNotationUTUpperTesterSIST EN 302 092-4 V1.1.1:2005

ETSIETSIEN302092-4V1.1.1(2000-09)94AbstractTestMethod4.1DescriptionofATMusedForCC,theprotocoldefinesdifferentrolesthataCCentitycanplay:itcanbeanendortransitCCentity.Inthefirstcase,onlyoneinterfaceisusedandinthesecondcase,twointerfacesareusedfortestingpurposes.TherequirementfortestingtheIUTistofocusonthebehaviouroftheIUTattheQB,SB,TBandco-incidentSB/TBreferencepointswithin,betweenandattheaccesstoBroadbandPrivateIntegratedServicesNetworksandwithin,betweenandattheaccesstopublicBroadbandIntegratedServicesDigitalNetworks.ThustheIUTisacallcontrolprotocolentityataparticularinterfaceandisnottheotherentitiesandfunctionsexistingintheSUT.ItispossibletospecifyanATSbasedonaSingleparty(remote)testmethodforsuchanIUT.However,itisconsideredthatanATSbasedonsuchanapproachisoflimiteduseastheonlywaytospecifyIUTgeneratedPDUsistousethe"implicitsend"statement.ManyusersofsuchanATSwouldreplacethe"implicitsend"statementswithdescriptionsofthebehaviouratotherinterfaces.AnATSbasedonamulti-partytestmethodisconsideredtobemoreusefulinthatitisclosertohowarealtestsuitewouldbeconstructed.Suchatestmethodspecifiesbehaviouratmultiplenetworkinterfaces.Oneveryimportantlimitationhereisthattestsarefocussedononeparticularinterface.ThusthetestsystemismadeuponeMainTestComponent(MTC)andoneormoreParallelTestComponents(PTC),seefigure1.4.2ConventionsfortestcomponentsandPCOsMasterpartSlavepartMTCAOPERATORPTC1O(PCO)L0(PCO)L1(PCO)IUTSUTFigure1:Multi-partytestmethodSIST EN 302 092-4 V1.1.1:2005

ETSIETSIEN302092-4V1.1.1(2000-09)10Inamaster/slavearrangement,theMTCisconsideredtobethemasterwhilethePTCsaretheslaves.The"slave"testersareonlyanexplicitdescriptionofhowtodealwiththeremoteinterfacesduringthetestingprocess,i.e."howtomaketheIUTsendtherequiredmessage".Thismeans,inparticular,thattheverdictwillonlybeassignedfromtheprotocolaspectsobservedontheinterfaceundertest(i.e.bythe"master"tester),asitwouldbeobservedbyaterminalconnectedtothisinterface.Afailureinthecorrelationbetweentheprotocolatthedifferentinterfacestowhichthedifferenttestersareconnected,i.e.inthemechanismofthefunctionalserviceitself,willnotcauseaFAILverdict.Forinstance,iftheIUTfailstosendamessageonthetestedinterfaceafteranotherinterfacehasreceivedtheproperstimulus,theverdictwillbeINCONCLUSIVE.TheMTCMTCAhastwofunctionsinthisconfiguration.Firstly,ithastheMTCfunctionofcontrollingtheoneormorePTCs.ThusitisresponsibleforstartingthePTCsandafterwardsco-ordinatesactivitiesbyexchangingCo-ordinationMessages(CM)withthePTCs.SecondlyitisresponsibleforthebehaviouroftheLowerTester(LT)atPCOL0.Acombinationoftheremoteandmulti-partytestmethodsisapplied.Ascanbeseenfromfigure1,severalPCOsareused.Tester-MTCSUTTester-PTCPrenegotiationCo-ordinationIUTCallControlLayer3LTROSELTfunctionGFT-ControlTransportmechanismPCOPCOLayer2Layer1SAALSAALSAALServiceproviderFigure2:Combinationoftheremoteandmulti-partytestmethodsTheMTCPCOisnamed"L0"("L"forLower).TheL0PCOisusedtocontrolandobservethebehaviouroftheIUTandtestcaseverdictsareassigneddependingonthebehaviourobservedatthisPCO.ThePTCPTC1usesPCOsL1andO.ThesePCOsareusedtocontroland,inalimitedway,observethebehaviourofthenetworkequipmentatinterfaceotherthantheoneundertest.NoverdictsareassignedatthisPCO.TheL1PCOisonlyusedfortransitCCentity.ISO/IEC9646-2[5]allowstheinformalexpressionofTestCo-ordinationProcedures(TCP)betweentheSystemUnderTest(SUT)upperlayer(s)andtheLowerTester(LT).IntheATScontainedinannexC,TCPisachievedbyuseofasecond"informal"PCO,called"O"(forOperator).ThisPCOisusedtospecifycontrolbutnotobservationabovetheIUTandconsequently,eventsatthisPCOareneverusedtogeneratetestcaseverdicts.TheuseofthisOPCOisregardedasapreferredalternativetotheuseoftheimplicitsendevent,inthatitallowstheATStospecifyinaclearandmeaningfulwaywhatactionsarerequiredtobeperformedontheIUT.AsanalternativeofL1,theOPCOisusedforanendCCentity.Asstatedinapreviousparagraph,thenon-receiptofnetworkgeneratedmessagesatL0,whicharestimulatedbyeventsattheL1,willresultinINCONCLUSIVEratherthanFAILverdictsbeingassigned.IntestcaseswhichverifythattheIUTrejectsinvalidorunacceptableAPDUs,noPTCisactivatedatall,astheseproceduresareconsideredlocaltotheaccessbetweenIUTandMTC.SIST EN 302 092-4 V1.1.1:2005

ETSIETSIEN302092-4V1.1.1(2000-09)115UntestabletestpurposesTherearenountestabletestpurposesassociatedwiththisATS.6ATStoTPmapTheidentifiersusedfortheTPsarereusedastestcasenames.Thusthereisastraightforwardone-to-onemapping.7PCTRconformanceAtestlaboratory,whenrequestedbyaclienttoproduceaPCTR,isrequired,asspecifiedinISO/IEC9646
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