共查询到18条相似文献,搜索用时 78 毫秒
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为了满足日益增长的测试需求,欧洲电信标准协会推出了新一代测试描述语言TTCN-3.TTCN-3的表格形式不仅是其核心语言的一种表现形式,而且强调了如何满足协议一致性测试的需求.文中研究了TTCN-3的表格形式,并提出了一个用表格形式描述的OSP协议的测试例.该测试例可以被应用于OSP协议的一致性测试. 相似文献
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应用层控制协议SIP(Session Initiation Protocol)已被用于在IP网络中建立、修改和终止多个参与者参加的多媒体会话.为了保证SIP的不同实现之间能够可靠地进行通信,需要对其进行严格的一致性测试并检验SIP实现是否与标准一致.ETSI(European Telecom munications Standards Institute)开发的下一代测试描述语言TTCN-3(Testing and Test Control Notation version 3)在SIP一致性测试中起着重要的作用.本文描述了通用TTCN-3测试系统的设计和实现以及使用TTCN-3对SIP进行测试的情况. 相似文献
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电力线载波通信技术正在从窄带向宽带发展,宽带载波通信已成为近年来电力线载波通信研发和应用的热点,为保证不同厂商研发的宽带电力线载波通信设备符合协议规范要求并能够互联互通,对其进行一致性测试十分必要。基于TTCN-3测试框架和Titan开发平台设计了宽带载波通信协议一致性测试系统,提出了一致性测试系统软件和硬件设计方案,阐述了测试系统各部分的实现机制及关键技术。在深入研究宽带载波通信协议的基础上,针对物理层、链路层和应用层分别设计了不同的测试用例,构建测试环境并进行一致性测试,可对被测系统协议实现的正确性进行判决。对推进宽带电力线通信的标准化和互联互通具有积极意义。 相似文献
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Ina Schieferdecker Juergen Grossmann 《International Journal on Software Tools for Technology Transfer (STTT)》2008,10(4):383-400
TTCN-3 has gained increasing significance in recent years. It was originally developed to fit the needs of testing software-based
applications and systems in the telecommunication industry and has shown its applicability to a wide range of other industrial
domains in the mean time. TTCN-3 provides platform-independent, universal and powerful concepts to describe tests, especially
for discrete, interactive systems. However, TTCN-3 addresses systems with discrete input and output characteristics only.
The lack of powerful means that reasonably allow specifying and evaluating continuous data flow makes TTCN-3 sufficient neither
for the automotive industry nor for other industries that deal with highly complex software-based control systems. This paper
introduces the notion of streams, stream ports and stream templates to TTCN-3. It revises the initial design of continuous
TTCN-3, a TTCN-3 extension for testing continuous or hybrid systems [20,21] and demonstrates the applicability for a case
study that is typical for testing embedded control systems in the automotive industry. 相似文献
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Juergen Grossmann 《International Journal on Software Tools for Technology Transfer (STTT)》2014,16(3):247-267
A testing language typically provides a set of test automation statements that allows for a systematic definition and automatic application of stimulation data (i.e. messages or signals) to a system under test. Moreover, it eases the assessment of the system’s reaction by providing customizable evaluation statements and functions. TTCN-3, the Testing and Test Control Notation, already provides universal and powerful concepts to describe tests for discrete, message-based systems. However, software-based control systems that are used to control physical processes often show continuous quantities that can be only poorly stimulated and assessed by means of the currently available language constructs in TTCN-3. In this article, we show how this problem can be solved by extending the TTCN-3 language. We introduce an extension of TTCN-3, namely TTCN-3 embedded, that provides concepts and constructs that directly address the specification of tests for continuous and hybrid real time systems. The extension includes the notion of streams that can be used to represent continuous quantities over time. In addition, TTCN-3 has been extended with the concepts of stream-based ports, sampling, equation systems, and with additional control flow structures. The concepts are integrated with standard TTCN-3 and allow for defining test cases that handle continuous quantities, as well as discrete state changes and the exchange of messages within the same concept space. The feasibility of the approach is shown by providing a small example from the automotive industry. 相似文献
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协议测试标准TTCN-3的实现 总被引:4,自引:0,他引:4
TTCN-3是ITU-T等国际组织制定的用于协议和软件测试的最新标准。通过分析TTCN标准的发展历程。该文比较两种不同的测试实现方法,并详细介绍了以虚拟机方法建立的TTCN-3测试执行系统。该系统突破了目前国内外广泛采用的语言翻译系统的结构,在提高测试效率的同时增强了测试系统的实用性。 相似文献
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基于TTCN-3的异系统间小区切换的测试 总被引:1,自引:0,他引:1
对TD-LTE与TD-SCDMA系统间的小区切换问题进行了深入研究,设计了相应的测试流程,提出了一种基于TTCN-3的测试系统实现方案,完成了对TD-LTE与TD-SCDMA系统间小区切换的测试。 相似文献