An Introduction to TTCN-3

Colin Willcock, Thomas Deiß, Stephan Tobies, Stefan Keil, Federico Engler, Stephan Schulz




Looking for a solid introduction to the TTCN-3 language and its use? An Introduction to TTCN-3 is just what you need. All the important concepts and constructs of the language are explained in a tutorial style with the emphasis on extensive examples. Throughout the author also addresses the larger picture of how the testing language is related to the overall test system implementation.

  • A complete tutorial reference on TTCN-3 with real-world examples and expert advice based on author’s practical industrial experience using the standard.
  • Offering a unique insider perspective: Nokia has been instrumental in the development of both the language and tools associated with TTCN-3 and the author is in a unique position to document this experience to help and guide new users.
  • And an associated web site that contains code samples from the book and links to the relevant standards documents.

This book provides the perfect companion to the available TTCN-3 language standards filling the gaps in areas such as style guide, structuring, and pointing out the dangers or pitfalls based on the author’s personal TTCN-3 experience from language standardization, tool implementation and applying TTCN-3 for a number of years in the real world. The style and level of the book make it suitable for both engineers learning and applying the language in the real world and students learning TTCN-3 as part of their studies.


Table of Contents:

About the Authors.



List of Figures.

List of Tables.

Abbreviations and Acronyms.

1 Introduction.

1.1 TTCN-3 as a Language.

1.2 The Development of TTCN-3.

1.3 Summary.

2 TTCN-3 by Example.

2.1 TTCN-3 Test Suite.

2.2 TTCN-3 Test Systems.

2.3 Summary.

3 Basic TTCN-3.

3.1 Basic Constructs.

3.2 Basic Statements.

3.3 Summary.

4 Non-concurrent TTCN-3.

4.1 Ports.

4.2 Components.

4.3 Test Cases.

4.4 Templates.

4.5 Message-based Communication.

4.6 Timers.

4.7 Alt Statement.

4.8 Altsteps.

4.9 Default Altsteps.

4.10 Functions.

4.11 Summary.

5 Concurrent TTCN-3.

5.1 Concurrent Test Case Example.

5.2 Test Components.

5.3 Mappings and Connections.

5.4 Miscellaneous Port Operations.

5.5 SUT Addresses.

5.6 Summary.

6 Procedure-based Communication.

6.1 Procedure-Versus Message-based Communication.

6.2 An Example – the Directory Service.

6.3 Procedure-based Communication in TTCN-3.

6.4 Communication Operations.

6.5 Procedure-based Communication on the Client Side.

6.6 Procedure-based Communication on the Server Side.

6.7 Addressing.

6.8 Summary.

7 Modular TTCN-3.

7.1 Modules.

7.2 Group Definitions.

7.3 Importing.

7.4 Module Parameters.

7.5 Attributes.

7.6 Summary.

8 TTCN-3 Data Types.

8.1 The Session Initiation Protocol.

8.2 Subtyping.

8.3 TTCN-3 Built-in Types.

8.4 User-defined Types.

8.5 Summary.

9 Advanced Type Topics.

9.1 Type Compatibility.

9.2 The Anytype Type.

9.3 The Address Type.

9.4 Recursive Type Definitions.

9.5 Foreign Type Systems.

9.6 Summary.

10 Templates.

10.1 A First Look at TTCN-3 Templates.

10.2 The TTCN-3 Match Operation.

10.3 Template Definition for One Specific Value.

10.4 Template Definitions with Matching Expressions.

10.5 Template Definitions for Signatures.

10.6 About Assignment, Access of Templates, and the Valueof Operation.

10.7 Summary.

11 Advanced Templates.

11.1 Template Definitions for Complex Type Structures.

11.2 Template References.

11.3 Template Parameterization.

11.4 Selective Modification of Other Templates.

11.5 Explicit Versus Implicit Template Definitions.

11.6 Structuring of Template Definitions for Complex Types.

11.7 Summary.

12 TTCN-3 Test Systems in Practice.

12.1 The Anatomy of a TTCN-3 Test System.

12.2 Test System Execution of a Simple Test Case.

12.3 More About The SUT Adapter.

12.4 More About The Platform Adapter.

12.5 More About External Codecs.

12.6 Conclusion.

13 Advice and Examples.

13.1 TTCN-3 Style Guide.

13.2 Suggestions for Modularization.

13.3 Template Specification for Complex Message Definitions.

13.4 Useful Behaviour.

13.5 Synchronizing Parallel Test Components.

14 Closing Thoughts and Future Directions.





  • 提供了一個完整的TTCN-3教程,包含真實世界的示例和基於作者實際工業經驗的專家建議。

  • 提供了獨特的內部觀點:諾基亞在TTCN-3的語言和工具開發方面發揮了重要作用,作者處於獨特的位置,可以記錄這一經驗,幫助和指導新用戶。

  • 還有一個相關的網站,其中包含來自書中的代碼示例和相關標準文件的鏈接。


1. 關於作者
2. 前言
3. 致謝
4. 圖表清單
5. 表格清單
6. 縮寫和首字母縮略詞
7. 第1章 簡介
7.1 TTCN-3作為一種語言
7.2 TTCN-3的發展
7.3 總結
8. 第2章 通過示例學習TTCN-3
8.1 TTCN-3測試套件
8.2 TTCN-3測試系統
8.3 總結
9. 第3章 基本TTCN-3
9.1 基本結構
9.2 基本語句
9.3 總結
10. 第4章 非併發TTCN-3
10.1 端口
10.2 組件
10.3 測試用例
10.4 模板
10.5 基於消息的通信