ITU-T Z.150-2003 用户要求符号(URN)语音要求和框架 Z系列:电讯系统语言和一般软件特征 正式描述技术(FDT) 用户要求符号(URN) User Requirements Notation (URN) ?Language requirements and framework SERIES Z: LANGUAGES AND GENERA

pdf标准 ITU-T Z.150-2003 用户要求符号(URN)语音要求和框架 Z系列:电讯系统语言和一般软件特征 正式描述技术(FDT) 用户要求符号(URN) User Requirements Notation (URN) ?Language requirements and framework SERIES Z: LANGUAGES AND GENERA

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ITU-T Z.150-2003 用户要求符号(URN)语音要求和框架 Z系列:电讯系统语言和一般软件特征 正式描述技术(FDT) 用户要求符号(URN) User Requirements Notation (URN) ?Language requirements and framework SERIES Z: LANGUAGES AND GENERA 第 1 页 ITU-T Z.150-2003 用户要求符号(URN)语音要求和框架 Z系列:电讯系统语言和一般软件特征 正式描述技术(FDT) 用户要求符号(URN) User Requirements Notation (URN) ?Language requirements and framework SERIES Z: LANGUAGES AND GENERA 第 2 页 ITU-T Z.150-2003 用户要求符号(URN)语音要求和框架 Z系列:电讯系统语言和一般软件特征 正式描述技术(FDT) 用户要求符号(URN) User Requirements Notation (URN) ?Language requirements and framework SERIES Z: LANGUAGES AND GENERA 第 3 页 ITU-T Z.150-2003 用户要求符号(URN)语音要求和框架 Z系列:电讯系统语言和一般软件特征 正式描述技术(FDT) 用户要求符号(URN) User Requirements Notation (URN) ?Language requirements and framework SERIES Z: LANGUAGES AND GENERA 第 4 页 ITU-T Z.150-2003 用户要求符号(URN)语音要求和框架 Z系列:电讯系统语言和一般软件特征 正式描述技术(FDT) 用户要求符号(URN) User Requirements Notation (URN) ?Language requirements and framework SERIES Z: LANGUAGES AND GENERA 第 5 页
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INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Z.150 (02/2003) SERIES Z: LANGUAGES AND GENERAL SOFTWARE ASPECTS FOR TELECOMMUNICATION SYSTEMS Formal description techniques (FDT) – User Requirements Notation (URN) User Requirements Notation (URN) – Language requirements and framework ITU-T Recommendation Z.150 ITU-T Z-SERIES RECOMMENDATIONS LANGUAGES AND GENERAL SOFTWARE ASPECTS FOR TELECOMMUNICATION SYSTEMS FORMAL DESCRIPTION TECHNIQUES (FDT) Specification and Description Language (SDL) Application of formal description techniques Message Sequence Chart (MSC) Extended Object Definition Language (eODL) Tree and Tabular Combined Notation (TTCN) User Requirements Notation (URN) PROGRAMMING LANGUAGES CHILL: The ITU-T high level language MAN-MACHINE LANGUAGE General principles Basic syntax and dialogue procedures Extended MML for visual display terminals Specification of the man-machine interface Data-oriented human-machine interfaces Human-computer interfaces for the management of telecommunications networks QUALITY Quality of telecommunication software Quality aspects of protocol-related Recommendations METHODS Methods for validation and testing MIDDLEWARE Distributed processing environment For further details, please refer to the list of ITU-T Recommendations. Z.100–Z.109 Z.110–Z.119 Z.120–Z.129 Z.130–Z.139 Z.140–Z.149 Z.150–Z.159 Z.200–Z.209 Z.300–Z.309 Z.310–Z.319 Z.320–Z.329 Z.330–Z.349 Z.350–Z.359 Z.360–Z.369 Z.400–Z.409 Z.450–Z.459 Z.500–Z.519 Z.600–Z.609 ITU-T Recommendation Z.150 User Requirements Notation (URN) – Language requirements and framework Summary Scope-objective This Recommendation with other Recommendations in the Z.150 series defines URN (User Requirements Notation) for describing user requirement as goals and scenarios in a formal way without any reference to implementation mechanisms and with optional dependency on component specification. Such a notation is needed to capture user requirements prior to any design. Coverage URN has concepts for the specification of behaviour, structuring, goals, and non-functional requirements. This Recommendation focuses on language requirements for URN and on providing the context for a requirements engineering framework. Other Recommendations in the Z.150 series define the notation for URN. Applications URN is applicable within standards bodies and industry. URN helps to describe and communicate requirements, and to develop reasoning about them. The main applications areas include telecommunications systems and services, but URN is generally suitable for describing most types of reactive systems. The range of applications is from goal modelling and requirements description to high-level design. Status/Stability This Recommendation provides the scope and requirements for URN. The main body of the Recommendation has following attachments: • Annex A Compliance to this Recommendation; • Appendix I Requirements engineering activities; • Appendix II Guidelines for the maintenance of URN; • Bibliography. Associated work This work is associated with languages, notations, and methodological aspects related to other ITU-T Study Group 17 languages. Source ITU-T Recommendation Z.150 (2003) was prepared by ITU-T Study Group 17 (2001-2004) and approved under the WTSA Resolution 1 procedure on 13 February 2003. Keywords Evaluation, formal specification, functional requirements, goal, graphical notation, hierarchical decomposition, non-functional requirements, requirements engineering activities, scenario, transformation. ITU-T Rec. Z.150 (02/2003) i FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. 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. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of

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