Test Case Specification
The Classification Tree Method
The Classification Tree Method is a systematic approach to test planning. This method transforms a problem specification into a set of error-sensitive, low-redundancy test case specifications.
The Classification Tree Editor CTE is a tool to support the Classification Tree Method.
CTE is integrated with the module/unit testing tool Tessy.
The Classification Tree Method addresses questions like
- How many tests should be run?
- What test data should be used?
- How can redundant test cases be avoided?
- Have any test cases been overlooked?
- When is it safe to end testing?
The objective of the Classification Tree Method is to determine a sufficient but minimum number of test case specifications.
CTE originates from the former software technology laboratory of Daimler-Benz in Berlin, Germany.




