ITU-T Z.164-2011 (Pre-Published) Testing and Test Control Notation version 3: TTCN-3 operational semantics

pdf标准 ITU-T Z.164-2011 (Pre-Published) Testing and Test Control Notation version 3: TTCN-3 operational semantics

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INTERNATIONAL TELECOMMUNICATION UNION ITU-T Z.164 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2011) SERIES Z: LANGUAGES AND GENERAL SOFTWARE ASPECTS FOR TELECOMMUNICATION SYSTEMS Formal description techniques (FDT) – Testing and Test Control Notation (TTCN) Testing and Test Control Notation version 3: TTCN-3 operational semantics CAUTION ! PREPUBLISHED RECOMMENDATION This prepublication is an unedited version of a recently approved Recommendation. It will be replaced by the published version after editing. Therefore, there will be differences between this prepublication and the published version. FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-T's purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words "shall" or some other obligatory language such as "must" and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU [had/had not] received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http://www.itu.int/ITU-T/ipr/.  ITU 2011 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Recommendation ITU-T Z.164 Testing and Test Control Notation version 3: TTCN-3 operational semantics Summary Recommendation ITU-T Z.164 defines the operational semantics of TTCN-3 (Testing and Test Control Notation 3). The operational semantics are necessary to unambiguously interpret the specifications made with TTCN-3. This Recommendation is based on the TTCN-3 core language defined in [ITU-T Z.161]. This Recommendation is technically aligned with ETSI ES 201 873-4 V4.2.1 (2010-07) [ETSI 201 873-4]. Source Recommendation ITU-T Z.164 was approved on 13 November 2011 by ITU-T Study Group 17 (2008-2012) under the ITU-T Recommendation A.8 procedure. Rec. ITU-T Z.164 (03/2011) – Prepublished version 1 CONTENTS 1 Scope ............................................................................................................................ 5 2 References..................................................................................................................... 5 2.1 Normative references...................................................................................... 5 2.2 Informative references .................................................................................... 5 3 Definitions and abbreviations ....................................................................................... 5 3.1 Definitions ...................................................................................................... 5 3.2 Abbreviations ................................................................................................. 5 4 Introduction ............................................................

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