ETSI TR 101 101-1997 Methods for Testing and Specification (MTS) TTCN Interim Version Including ASN 1 1994 Support (V1 1 1 ISO IEC 9646-3 Second Edition Mock-up for JTC1 SC21 Revie_1.pdf

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1、TR 1 O1 1 O1 1.1.1 (1997-08) Methods for Testing and Specification (MTS); TTCN interim version including ASNA 1994 support (Second Edition Mock-up for JTClSC21 Review) ISO/IEC 9646-31 2 TR 101 101 Vl.l.1 (1997-08) Reference DTFUMTS-00045 (a7000ics.PDF) Keywords ASN.l, TTCN ETSI Secretariat Postai ad

2、dress F-O6921 Sophia Antipolis Cedex - FRANCE Office address 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre a la Sous-Prfecture de Grasse (06) No 7803/88 X.400 c

3、= fr; a=atlas; p=etsi; s=secretariat Internet secretariata etsi.fr http:/w.etsi.fr Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in ail media. O European Telecommunications Standards Ins

4、titute 1997. Ali rights reserved. STD-ETSI TR 101 101-ENGL 1997 3L100855 3 0229531 BT7 = TR 101 101 Vl.l.1 (1997-08) Contents Intellectual Property Rights 4 Foreword 4 Introduction 5 1 Scope 6 2 References 6 Appendix 1: The Tree and Tabular Combined Notation (TTCN) 7 Appendix 2: Defect reports 254 H

5、istory 267 STDOETSI TR 101 LOL-ENGL 1997 3q00855 0229532 733 4 TR 101 101 V1.l.l (1997-08) Intellectual Property Rights PRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for

6、 ETSI members and non-members , and can be found in ETR 3 14: “Intellectual Property Rights (IPRsJ; Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSI Web serv

7、er (http:/www.etsi.fi/ipr). Pursuant to the ETSI Interim IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETR 314 (or the updates on http:/www.etsi.fr/ipr) which are, or may be, or may be

8、come, essential to the present document. Foreword ISO/IEC 9646 is produced and maintained under the responsibility of ISO/IEC JTCUSC21. It provides a methodology and framework for the conformance testing and the interconnection testing of Open Systems and of Information and Communication Systems and

9、 Equipment at the User and Network side in general. Part 3 of this international Standard (ISOIIEC 9646-3) is the well established “Tree and Tabular Combined Notation“ (TTCN), which is a notation that has been adopted and used by many ETSI technical bodies and other European and world wide organizat

10、ions active in the area of telecommunications. These organizations have produced an impressive number of TTCN Abstract Test Suites (ATS), e.g., for a wide set of telecommunication domains, such as N-ISDN, B- ISDN, GSM, DECT, etc This ETSI Technical Report (TR) contains an appendix (appendix 1) which

11、 is the result of the technical analyses, discussions and elaboration on the TTCN notation and the needed evolution that has taken place during the last years in the framework of ETSI TC MTS activities, in co-operation and in liaison with EWOSEGCT. It is here recognized that the basic inputs to the

12、mentioned technical work of ETSI TC MTS and EWOS/EGCT were the published edition one of the ISO/IEC 9646-3 standard l, and the related approved amendments AM1 and AM2. ISO/IEC has kindly granted ETSI copyright permission to publish annex 1 of this TR on an interim basis. Without this support it woul

13、d have been difficult for ETSI to make most relevant up to date technical information available for its members. The present document will be withdrawn as soon as a new edition of ISO/IEC 9646-3 (1992): has been published by ISO/IEC. The work of TC MTS and EGCT was mainly aimed at supporting and fac

14、ilitating at the technical level the publication by IS0 of the official second edition of TTCN containing the features that are felt essential to telecommunication (and to the information infrastructures in general). The reason for ETSI publishing this TR is twofold: Firstly, in the spirit of the mu

15、tually beneficial collaboration between ISO/IEC and ETSI, the appendix 1 of this TR is a relevant ETSI contribution to the JTC1 SC21 work aimed at publishing the official second edition of the TTCN standard. Actually, the document in appendix 1 is the SC21 review copy for national body and liaison o

16、rganization review. Secondly, by publishing this TR, ETSI is also making the most relevant up to date technical information on the main new features available to its members for internal use. It is expected that the publication of this TR will be found useful by a wide community of ITCN users and ET

17、SI ATSs developers and by tools manufacturers, network operators, administrations, regulators, and user associations. STD-ETSI TR 101 101-ENGL 1797 3400855 0229533 b7T 5 TR 101 101 V1.l.l (1997-08) Introduction Relationship with the ISO/IEC JTCl/SC21 editing group The ISO/iEC JTCl/SC21 editing group

18、 for ISO/IEC 9646-3 (TTCN) was active in 1994 to resolve comments on DAM-1 (in October 1993) and DAM-2, but then progress ground to a halt due to funding issues. After a period of over a year with no significant activity, a little funding was found in two EC funded projects, and this led to the main

19、 technical work of integration of edition one with AM-1 and AM-2 by November 1995, resulting in the completion of the BNF and table proformas, which were put into a document for SC21 NBLO review. No comments were received during this review but in parallel several defect reports were resolved, inclu

20、ding a group of 26 defect reports resolved by a single technical comgendum for modular TCN. This solution to the issue of modular TCN was a joint production of EWOSEGCT and ETSI TCIMTS. Then in January 1996, the IS0 editor - with some support from other TCN experts active in the framework of ETSI an

21、d EWOS - took on the job of producing a complete mock-up of the second edition consistent with the BNF and proformas in the SC21 review document, but with the addition of the various technical corrigenda. During the first 6 months of 1996 he produced several deliveries, culminating in delivery 8 in

22、June 1996, presented to the Bruxelles joint and other interested parties to validate the consistency of the syntax and static semantics. Editorial control was then taken back by the IS0 rapporteur for a technical validation phase. It was agreed that various small bugs reported by tool makers and use

23、rs should be removed from delivery 8 and that deliveries numbered 8.x should signify this, whereas there was one larger technical corrigendum which should be added to produce the functionality of the eventual IS0 publication and this would appear in deliveries numbered 9.x. So it was that delivery 8

24、.3 was produced in August 1996 and comments on it were discussed in the ETSI TC/MTS meeting in October 1996. This resulted in delivery 8.4 in November 1996 and delivery 9.4 in December 1996. A final round of ETSI TC/MTS defect reports on these two versions was then held. The final resolution of the

25、resulting 19 defect reports was agreed in the ETSI TCIMTS meeting in March 1997. The IS0 rapporteur agreed to make that solution the SC21 NBLO review copy of the mock-up of the second edition. Delivery 9.6 (contained in the appendix 1 of the present document) was produced on 21 April in a form suita

26、ble for SC21 distribution. The IS0 editor has now taken back editorial control to do final editing, including production of the contents list, introduction and indexes. I l meeting of TC MTS and EWOSEGCT. It was then decided that this version needed to be checked by the tool makers Main Technical fe

27、atures and new defect reports The key new technical features for the second edition of TCN include: a) concurrency; b) encoding operations; c) formalized test suite operations; d) active defaults; e) modularity; f) grouping sets of related objects. Since the final draft of this TR was approved by ET

28、SI TC MTS a number of technical defects have been discovered. All these defects are concerned with the integration of ASN.l, see ITU-T Recommendations X. 680 1994 21 with TICN. appendix 2 of the present document contains the six defect reports that ETSI has submitted to the IS0 together with the cor

29、responding proposed technical corrigenda. ETSI TC MTS urges all users of the present document to treat them as necessary corrections to TTCN version 2. - STD-ETSI TR 101 LOL-ENGL 1997 m 3400855 0229534 506 m 6 TR 101 101 Vl.l.1 (1997-08) 1 Scope The present document outlines an interim update state

30、of the standard ISO/IEC 9646-3: (1992) i, which will be further maintained and published later by ISO. The present document is provided in order to make the present status available for TTCN users and for ATS developers and users. 2 Ref e re nces References may be made to: a) specific versions of pu

31、blications (identified by date of publication, edition number, version number, etc.), in which case, subsequent revisions to the referenced document do not apply; or b) all versions up to and including the identified version (identified by “up to and including“ before the version identity); or c) al

32、l versions subsequent to and including the identified version (identified by “onwards“ following the version identity); or d) publications without mention of a specific version, in which case the latest version applies. A non-specific reference to an ETS shall also be taken to refer to later version

33、s pubhhed as an EN with the same number. Hl ISO/iEC 9646-3 (1992): “information Technology - Open Systems Interconnection - Conformance testing methodology and framework - Part 3: The Tree and Tabular Combined Notation (TTCN)“. ITU-T Recommendation X.680 (1994): “Information technology - Open System

34、 Interconnection - Abstract Syntax Notation One (ASN.l): Specification of Basic Notation“ (also published as IS0 Pl 8824-1). STD - ETSI TR 101 LOI-ENGL 2997 3400855 7 0229535 442 rn TR 101 101 V1.l.l (1997-08) Appendix 1 : The Tree and Tabular Combined Notation (TTCN) Second Edition Mock-up for SC21

35、 Review of ISO/IEC 9646-3: 1997 STD-ETSI TR LOL LOI-ENGL 1997 3400855 022753b 389 ISOAEC 9646-3: 1997 Second Edition Mock-up for SC21 Review Information technology - Open Systems Interconnection - Conformance testing methodology and framework - Part 3: The Tree and Tabular Combined Notation (TTCN) 1

36、 Scope This part of ISO/IEC 9646 defines an informal test notation, called the Tree and Tabular Combined Notation (TTCN), for OS1 conformance test suites, which is independent of test methods, layers and protocols, and which reflects the abstract testing methodology defined in ISO/IEC 9646-1 and ISO

37、/IEC 9646-2. It also specifies requirements and provides guidance for using TTCN in the specification of system-independent conformance test suites for one or more OS1 standards. It specifies two forms of the notation: one, a human-readable form, applicable to th e production of conformance test sui

38、te standards for OS1 protocols; and the other, a machine-processable form, applicable to processing within and between computer systems. This part of ISO/IEC 9646 applies to the specification of conformance test cases which can be expressed abstractly in terms of control and observation of protocol

39、data units and abstract service primitives. Nevertheless, for some protocols, test cases ma y be needed which cannot be expressed in these terms. The specification of such test cases is outside the scope of this part of I SO/ IEC 9646, although those test cases may need to be included in a conforman

40、ce test suite standard. For example, some static conformance requirements related to an application service may require testing techniques which are specific to that particular application. The specification of test cases in which more than one behaviour description is to be run in parallel is dealt

41、 with by the concurrency features (particularly involving the definition of Test Components and Test Component Configurations). This part of ISO/IEC 9646 specifies requirements on what a test suite standard may specify about a conforming realization of the test suite, including the operational seman

42、tics of TTCN test suites. This part of ISO/IEC 9646 applies to the specification of conformance test suites for OS1 protocols in OS1 layers 2 to 7, specifically including Abstract Syntax Notation One (ASN.l) based protocols. The following are outside the scope of this part of ISO/IEC 9646: a) the sp

43、ecification of conformance test suites for Physical layer protocols; b) the relationship between TTCN and formal description techniques; c) the means of realization of executable test suites (ETS) from abstract test suites. This part of ISO/IEC 9646 defines mechanisms for using concurrency in the sp

44、ecification of abstract test cases. Concurrency in TTCN is applicable to the specification of test cases: a) in a multi-party testing context; b) which handle multiplexing and demultiplexing in either a single-party or multi-party testing context; c) which handle splitting and recombining in either

45、a single-party or multi-party testing context; d) in a single-party testing context when the complexity of the protocol or set of protocols handled by the IUT is such that concurrency can simplify the specification of the test case. TTCN modules are defined to allow sharing of common TTCN specificat

46、ions between test suites. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO/IEC 9646. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to

47、agre ements based on this part of ISO/IEC 9646 are encouraged to investigate the possibility of applying the most recent editions of the standards listed below, Members of IS0 and IEC maintain registers of currently valid International Standards. IS0 646 : 1991, Information technology - IS0 /-bit co

48、ded character set for information interchange. ISO/IEC 7498-1 : 1995, Information technology - Open Systems Interconnection -Basic Reference Model - Part 1: The Basic Delivery 9.6,21 April 1997 1 STDmETSI TR 101 LOL-ENGL 1997 D 3Y00855 0229537 215 Second Edition Mock-up for SC21 Review ISO/IEC 9646-

49、3: 1997 Model. (See also ITU-T Recommendation X.200 : 1994.) ISOIIEC 8824-1 : 1994, Information technology - Abstract Syntax Notation One (ASN.1) - Part 1: Specifcation of Basic Notation. (See also ITU-T Recommendation X.680 : 1994.) ISOIIEC 8824-1iAmd. 1 : 1995, Information Technology - Abstractsyntax Notation One (ASN.1) -Pari 1: Specification ofBasic Notation - Amendment I: Rules for Extensibility. (See also ITU-T Recommendation X.680 Amendment 1 : 1995.) ISOIIEC 8824-2 : 1994, Information Technology -Abstract Syntax Notation One (ASN.1) - Part 2: Informati