SIST EN 302 091-4 V1.1.1:2005

• Abstract:

  Develop part 4 (ATS&PIXIT for the user)

• Status: Published
• Publication Date: 31-Dec-2004
• 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 302 091-4 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 Inter-Exchange Signalling (B-QSIG) and Signalling System No.7 (SS7); Prenegotiation; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification

SIST EN 302 091-4 V1.1.1:2005 is the Slovenian adoption of ETSI EN 302 091-4 V1.1.1, published by SIST for telecommunications conformance testing. It specifies the Abstract Test Suite (ATS) and the partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma for Prenegotiation in Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN) systems using Digital Subscriber Signalling System No. two (DSS2), Broadband Inter-Exchange Signalling (B-QSIG), and Signalling System No.7 (SS7). The document is used when checking implementations at the QB, SB, TB, and co-incident SB/TB reference points.

What does SIST EN 302 091-4 V1.1.1:2005 specify?

SIST EN 302 091-4 V1.1.1:2005 specifies the testing material for the Prenegotiation protocol defined in EN 302 091-1. It gives the ATS and the partial PIXIT proforma needed to assess protocol implementations in the B-ISDN and B-PISN signalling environment.

The document is organized into clauses 1 to 9 and three normative annexes.

Annex	What it covers
Annex A	Protocol Conformance Test Report (PCTR) proforma
Annex B	Partial PIXIT proforma
Annex C	Abstract Test Suite (ATS)

What are the key requirements of SIST EN 302 091-4 V1.1.1:2005?

The document is built around conformance testing, so its main requirements are about how to test, how to document the test setup, and how to claim conformance.

Test method and observation point

Clause 4 states that the ATS uses a remote test method. The Point of Control and Observation (PCO) is at the service access point between Layer 2 and Layer 3, and this PCO is named L0. In practice, that means verdicts are based on behavior observed at the lower interface, not on internal implementation details.

Clause 4 also introduces an additional informal PCO called O for Test Co-ordination Procedures (TCP). That control point is used to specify actions on the System Under Test (SUT) without using it for verdicts, which helps the test cases describe operator actions clearly.

Test purposes and test case naming

Clause 5 states that there are no untestable test purposes associated with this ATS. Clause 6 states that the Test Purpose (TP) identifiers are reused as test case names, with a one-to-one mapping. In practice, this makes it easier to trace a test result back to the exact intended behavior.

PCTR conformance

Clause 7 requires a test laboratory that produces a Protocol Conformance Test Report (PCTR) to conform to the PCTR proforma in Annex A, and to the general PCTR template in ISO/IEC 9646-5. The content and ordering of Annex A must be preserved. This matters because the report is part of the conformance record and must stay consistent across labs.

PIXIT conformance

Clause 8 requires a test realizer to produce an augmented partial PIXIT proforma that is technically equivalent to Annex B. Additional questions may be added when they are needed to prepare the Means of Testing (MOT) for a specific Implementation Under Test (IUT). In practice, the PIXIT collects the configuration details the lab needs before it can run the tests correctly.

ATS conformance

Clause 9 requires the test realizer to follow ISO/IEC 9646-4 when producing the MOT and the Executable Test Suite (ExTS). The ExTS must contain test groups and test cases that are technically equivalent to the ATS in Annex C, and every abstract test sequence must be realizable as an executable test case. Any extra checking performed by a test system is outside the scope of this ATS.

What terms does SIST EN 302 091-4 V1.1.1:2005 define?

• Abstract Test Suite (ATS) - the set of abstract test cases used to assess protocol conformance.
• Protocol Implementation eXtra Information for Testing (PIXIT) - extra implementation-specific information needed to prepare and run the tests.
• Implementation Under Test (IUT) - the implementation being assessed for conformance.
• System Under Test (SUT) - the broader system or platform that contains the IUT during testing.
• Point of Control and Observation (PCO) - the point where the tester controls and observes protocol behavior.
• Protocol Conformance Test Report (PCTR) - the report that records the testing setup, results, and conformance status.
• Tree and Tabular Combined Notation (TTCN) - the notation used to express the ATS in Annex C.

Who uses SIST EN 302 091-4 V1.1.1:2005?

Test laboratories use this standard to run conformance tests and issue the PCTR. Test realizer teams use it to build the Means of Testing and the Executable Test Suite from the ATS. Equipment suppliers, network vendors, and integrators use it when they need to prepare an implementation for testing at the specified reference points.

Clients commissioning tests use the PIXIT and PCTR forms to agree the test environment, identify the IUT, and record results. Engineers working on B-ISDN and B-PISN signalling equipment use it to check Prenegotiation behavior against the agreed protocol specification.

Which standards are used with SIST EN 302 091-4 V1.1.1:2005?

• ETSI EN 302 091-1 - gives the Prenegotiation protocol specification that this part tests.
• ETSI EN 302 091-2 - gives the Protocol Implementation Conformance Statement (PICS) proforma used with the protocol series.
• ETSI EN 302 092-1 - provides related protocol definitions for the same signalling family.
• ISO/IEC 9646-1 - gives the general concepts for OSI conformance testing.
• ISO/IEC 9646-2 - gives the framework for Abstract Test Suites and the remote test method.
• ISO/IEC 9646-3 - defines TTCN, the notation used for the ATS.
• ISO/IEC 9646-4 - covers test realization and the production of executable tests.
• ISO/IEC 9646-5 - sets requirements for test laboratories and clients in conformance assessment.

What does the SIST EN 302 091-4 V1.1.1:2005 document contain?

Annex A contains a report form with sections for identification, IUT status, static and dynamic conformance summaries, test campaign results, and observations. Annex B contains fill-in forms for the test laboratory, client, SUT, protocol identification, supported configurations, parameter values, and test management timers.

Annex C contains the ATS itself in TTCN graphical form and machine-processable form. Clause 4 includes the remote test setup, and the annexes give the structured material needed to prepare, execute, and record protocol conformance testing without reproducing the protocol behavior in prose.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN); Digital Subscriber Signalling System No. two (DSS2) and Broadband Inter-Exchange Signalling (B-QSIG) and Signalling System No.7 (SS7); Prenegotiation; 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)ICS:Ta slovenski standard je istoveten z:EN 302 091-4 Version 1.1.1SIST EN 302 091-4 V1.1.1:2005en01-januar-2005SIST EN 302 091-4 V1.1.1:2005SLOVENSKI
STANDARD
ETSIEN302091-4V1.1.1(2000-09)EuropeanStandard(Telecommunicationsseries)BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2)andBroadbandInter-ExchangeSignalling(B-QSIG)andSignallingSystemNo.7(SS7);Prenegotiation;Part4:AbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaspecificationSIST EN 302 091-4 V1.1.1:2005

ETSIETSIEN302091-4V1.1.1(2000-09)2ReferenceDEN/SPAN-05153-4KeywordsB-ISUP,B-ISDN,DSS2,B-QSIG,SS7,testing,ATS,PIXITETSI650RoutedesLuciolesF-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 302 091-4 V1.1.1:2005

ETSIETSIEN302091-4V1.1.1(2000-09)3ContentsIntellectualPropertyRights.5Foreword.51Scope.62References.63Definitionsandabbreviations.73.1Definitions.73.2Abbreviations.74AbstractTestMethod.85Untestabletestpurposes.86ATStoTPmap.87PCTRconformance.98PIXITconformance.99ATSConformance.9AnnexA(normative):ProtocolConformanceTestReport(PCTR)proforma.10A.1Identificationsummary.10A.1.1Protocolconformancetestreport.10A.1.2IUTidentification.10A.1.3Testingenvironment.10A.1.4Limitsandreservations.11A.1.5Comments.11A.2IUTConformancestatus.11A.3Staticconformancesummary.11A.4Dynamicconformancesummary.12A.5Staticconformancereviewreport.12A.6Testcampaignreport.12A.7Observations.13AnnexB(normative):PartialPIXITproforma.14B.1Identificationsummary.14B.2Abstracttestsuitesummary.14B.3Testlaboratory.14B.4Client(oftheTestLaboratory).15B.5SUT.15B.6Protocolinformation.16B.6.1Protocolidentification.16B.6.2Configurationtobetested.16B.6.3ParameterValues.16B.6.4Testmanagementtimers.17SIST EN 302 091-4 V1.1.1:2005

ETSIETSIEN302091-4V1.1.1(2000-09)4AnnexC(normative):AbstractTestSuite(ATS).18C1TheTTCNGraphicalform(TTCN.GR).18C2TheTTCNMachineProcessableform(TTCN.MP).18Bibliography.19History.20SIST EN 302 091-4 V1.1.1:2005

ETSIETSIEN302091-4V1.1.1(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)Prenegotiation,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 302 091-4 V1.1.1:2005

ETSIETSIEN302091-4V1.1.1(2000-09)61ScopeThepresentdocumentprovidestheAbstractTestSuite(ATS)andpartialProtocolImplementationeXtraInformationforTesting(PIXIT)proformaforthePrenegotiationprotocolasspecifiedinEN302091-1[1].ThisfourthpartofEN302091[1]isapplicabletothePrenegotiationprotocolattheQB,SB,TBandco-incidentSB/TBreferencepointofimplementationsconformingtothestandardsfortheDigitalSubscriberSignallingSystemNo.two(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7)protocolspecificationforBroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN).AfurtherpartofthepresentdocumentspecifiestheTestSuiteStructureandTestPurposes(TSS&TP)relatedtothisATSandpartialPIXITproforma.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,subsequentrevisionsdoapply.[1]ETSIEN302091-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7);Prenegotiation;Part1:Protocolspecification".[2]ETSIEN302091-2:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7);Prenegotiation;Part2:ProtocolImplementationConformanceStatement(PICS)proformaspecification".[3]ISO/IEC9646-1:"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part1:Generalconcepts".[4]ISO/IEC9646-2:"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part2:Abstracttestsuitespecification".[5]ISO/IEC9646-4:"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part4:Testrealization".[6]ISO/IEC9646-5:"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part5:Requirementsontestlaboratoriesandclientsfortheconformanceassessmentprocess.[7]ETSIEN302092-1:"BroadbandIntegratedServicesDigitalNetwork(B-ISDN)andBroadbandPrivateIntegratedServicesNetwork(B-PISN);DigitalSubscriberSignallingSystemNo.two(DSS2),BroadbandInter-ExchangeSignalling(B-QSIG),andSignallingSystemNo.7(SS7);Callcontrolinaseparatedcallandbearercontrolenvironment;Part1:Protocolspecification".[8]ISO/IEC9646-3:"Informationtechnology;OpenSystemsInterconnection;Conformancetestingmethodologyandframework;Part3:TheTreeandTabularCombinedNotation(TTCN)".SIST EN 302 091-4 V1.1.1:2005

ETSIETSIEN302091-4V1.1.1(2000-09)73Definitionsandabbreviations3.1DefinitionsForthepurposesofthepresentdocument,thefollowingtermsanddefinitionsapplyinadditiontothedefinitionsinEN302092-1[7]:Abstracttestcase:refertoISO/IEC9646-1[3]AbstractTestMethod(ATM):refertoISO/IEC9646-1[3]AbstractTestSuite(ATS):refertoISO/IEC9646-1[3]ImplementationUnderTest(IUT):refertoISO/IEC9646-1[3]Lowertester(LT):refertoISO/IEC9646-1[3]ProtocolImplementationConformanceStatement(PICS):refertoISO/IEC9646-1[3]PICSproforma:refertoISO/IEC9646-1[3]ProtocolImplementationeXtraInformationforTesting(PIXIT):refertoISO/IEC9646-1[3]PIXITproforma:refertoISO/IEC9646-1[3]PointofControlandObservation(PCO):refertoISO/IEC9646-1[3]SystemUnderTest(SUT):refertoISO/IEC9646-1[3]TestPurpose(TP):refertoISO/IEC9646-1[3]UpperTester(UT):refertoISO/IEC9646-1[3]3.2AbbreviationsForthepurposesofthepresentdocument,thefollowingabbreviationsapply:ATMAbstractTestMethodATSAbstractTestSuiteB-ISDNBroadbandIntegratedServicesDigitalNetworkB-PISNBroadbandPrivateIntegratedServicesNetworkB-QSIGBroadbandInter-ExchangeSignallingSystemCMCo-ordinationMessageCPCo-ordinationPointDSS2DigitalSubscriberSignallingSystemNo.twoExTSExecutableTestSuiteIUTImplementationUnderTestLTLowerTesterMOTMeansOfTestingPCOPointofControlandObservationPICSProtocolImplementationConformanceStatementPIXITProtocolImplementationeXtraInformationforTestingPTCParallelTestComponentSUTSystemUnderTestTCPTestCo-ordinationProceduresTPTestPurposeTTCNTreeandTabularCombinedNotationUTUpperTesterSIST EN 302 091-4 V1.1.1:2005

ETSIETSIEN302091-4V1.1.1(2000-09)84AbstractTestMethodTheremotetestmethodisappliedfortheATS.ThePointofControlandObservation(PCO)residesattheserviceaccesspointbetweenLayer2and3.ThisPCOisnamed"L0"(forLower).TheL0PCOisusedtocontrolandobservethebehaviouroftheImplementationUnderTest(IUT)andtestcaseverdictsareassigneddependingonthebehaviourobservedatthisPCO.TesterSUTIUTPrenegotiationCoordinationCallControlLayer3LTROSEfunctionGFT-ControlTransportmechanismPCOLayer2Layer1SAALSAALServiceproviderFigure1:RemotetestmethodISO/IEC9646-2[4]allowstheinformalexpressionofTestCo-ordinationProcedures(TCP)betweentheSystemUnderTest(SUT)upperlayer(s)andtheLowerTester(LT).IntheATScontainedinannexC,TCPisachievedbyuseofasecond"informal"PCO,called"O"(forOperator).ThisPCOisusedtospecifycontrolbutnotobservationabovetheIUTandconsequently,eventsatthisPCOareneverusedtogeneratetestcaseverdicts.TheuseofthisOPCOisregardedasapreferredalternativetotheuseoftheimplicitsendevent,inthatitallowstheATStospecifyinaclearandmeaningfulwaywhatactionsarerequiredtobeperformedontheIUT.5UntestabletestpurposesTherearenountestabletestpurposesassociatedwiththisATS.6ATStoTPmapTheidentifiersusedfortheTPsarereusedastestcasenames.Thusthereisastraightforwardone-to-onemapping.SIST EN 302 091-4 V1.1.1:2005

ETSIETSIEN302091-4V1.1.1(2000-09)97PCTRconformanceAtestlaboratory,whenrequestedbyaclienttoproduceaPCTR,isrequired,asspecifiedinISO/IEC9646-5[6],toproduceaPCTRconformantwiththePCTRtemplategiveninannexBofISO/IEC9646-5[6].Furthermore,atestlaboratory,offeringtestingfortheATSspecificationcontainedinannexC,whenrequestedbyaclienttoproduceaPCTR,isrequiredtoproduceaPCTRconformantwiththePCTRproformacontainedinannexAofthepresentdocument.APCTRwhichconformstothisPCTRproformaspecificationshallpreservethecontentandorderingoftheclausescontainedinannexA.ClauseA.6ofthePCTRmaycontainadditionalcolumns.Ifincluded,theseshallbeplacedtotherightoftheexistingcolumns.Textinitalicsmayberetainedbythetestlaboratory.8PIXITconformanceAtestrealizer,producinganexecutabletestsuitefortheAbstractTestSuite(ATS)specificationcontainedinannexC,isrequired,asspecifiedinISO/IEC9646-4[5],toproduceanaugmentedpartialPIXITproformaconformantwiththispartialPIXITproformaspecification.AnaugmentedpartialPIXITproformawhichconformstothispartialPIXITproformaspecificationshall,asaminimum,havecontentswhicharetechnicallyequivalenttoannexB.TheaugmentedpartialPIXITproformamaycontainadditionalquestionsthatneedtobeansweredinordertopreparetheMeansOfTesting(MOT)foraparticularImplementationUnderTest(IUT).Atestlaboratory,offeringtestingfortheATSspecificationcontainedinannexC,isrequired,asspecifiedinISO/IEC9646-5[6],tofur
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