Functional Testing: CTE
This page contains papers on the classification-tree method CTM and the classification-tree editor CTE. The classification-tree method is a testing method for the systematic design of test cases on basis of the specification. The classification-tree editor is a graphical editor supporting the application of the classification-tree method. CTM and CTE are widely used in industrial practice.
First papers on CTM and CTE were published in 1993 by Grimm, Grochtmann and Wegener. New enhancements were recently published by Lehmann and Wegener. Jan Ebert, Andreas Fett, Christian Klaproth, Andreas Krämer, Eckard Lehmann, Stefan Ocke, Joachim Wegener, and Razorcat Development GmbH were involved in the development of the latest Classification-Tree Editor version: the CTE XL (eXtended Logics).
The new CTE XL is temporarily available for free. The download procedure consists of the two steps:
- license agreement
- and download of the CTE XL installer.
Download (current release is 1.6.1, last update 08.09.2005) 
To use the CTE XL a Pentium III system (450 Mhz, RAM 128 MB) is recommended. Feedback as well as error reports are very welcome and should be send to cte@systematic-testing.com.
For tips and tricks on using the CTE XL follow this link.
Lehmann, E.; Wegener, J.: Test Case Design by Means of the CTE XL. Proceedings
of the 8th European International Conference on Software Testing, Analysis
& Review (EuroSTAR 2000), Kopenhagen, Denmark, December 2000.-
Wegener, J.; Fey, I.: Systematic Unit-Testing of Ada Programs. Proceedings
of the International Conference on Reliable Software Technologies (Ada-Europe
1997), London, UK, 1997, pp. 64 - 75.
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Grochtmann, M.; Wegener, J.: Test Case Design Using Classification Trees
and the Classification-Tree Editor CTE. Proceedings of the 8th International
Software Quality Week, San Francisco, USA, May 1995.
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Grochtmann, M.: Test Case Design using Classification Trees. Proceedings
of the International Conference on Software Testing Analysis & Review
(STAR 1994), Washington D.C., USA, May 1994.
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Grochtmann, M.; Grimm, K.; Wegener, J.: Tool-Supported Test Case Design
for Black-Box Testing by Means of the Classification-Tree Editor. Proceedings
of the 1st European International Conference on Software Testing Analysis
& Review (EuroSTAR 1993), London, Great Britain, October 1993, pp. 169 - 176.
Grochtmann, M. und Grimm, K. (1993): Classification Trees for Partition
Testing. Software Testing, Verification & Reliability, vol. 3, no. 2,
pp. 63 - 82. Link to journal homepage and link
to table of contents. -
Wegener, J.; Krämer, A., Lehmann, E.: Automatische Testfallgenerierung
mit dem CTE XL. Talk at the 16th Meeting of the special interest group
on test, analysis and verification of software of the german computer
society, Elmshorn, Germany, February 2001.
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Wegener, J.; Grochtmann, M.: Werkzeugunterstützte Testfallermittlung
für den funktionalen Test mit dem Klassifikationsbaum-Editor CTE. Proceedings
der GI-Fachtagung Softwaretechnik '93, Dortmund, Germany, November 1993,
pp. 95 - 102.
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Nicolas Nardelli: Entwicklung eines Testkonzepts für parametrisierbare
Simulationsmodelle mechanischer, hydraulischer und regelungstechnischer
Systeme. Diploma Thesis, Universität Stuttgart, Stuttgart, Germany,
November 2000.
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Stefan Lützkendorf, Klaus Bothe: Attributierte Klassifikationsbäume zur
Testdatenbestimmung. Vortrag zum Treffen der Fachgruppe TAV der Gesellschaft
für Informatik, Köln, Germany, Februar 2003.