Chiou Peng Lam

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Properly generated test suites may not only locate the defects in software systems, but also help in reducing the high cost associated with software testing, ft is often desired that test sequences in a test suite can be automatically generated to achieve required test coverage. However, automatic test sequence generation remains a major problem in software(More)
The article presents a novel control-flow based test sequence generation technique using UML 2.0 activity diagram, which is a behavioral type of UML diagram. Like other model-based techniques, this technique can be used in the earlier phases of the development process owing to the availability of the design models of the system. The activity diagram model(More)
The problem of generating the test cases is one of the most important issues in the software testing research and practice. Test threads, especially the thin-threads which are the usage scenarios in a software system, are frequently used to generate test cases for the scenario-based software testing. However, the derivation of the test threads is usually a(More)
State-based testing is frequently used in software testing. Test data generation is one of the key issues in software testing. A properly generated test suite may not only locate the errors in a software system, but also help in reducing the high cost associated with software testing. It is often desired that test data in the form of test sequences within a(More)
Although attention has been given to the use of UML (Unified Modelling Language) activity diagrams in the generation of scenarios, thin-threads and test-cases, the processes described in the literature rely heavily on manual intervention either in the information extraction process or in the process of transforming them to an alternate structure. This paper(More)
Test case generation is one of the most important issues in software testing research and industrial practice. Test scenarios are frequently used to derive test cases for scenario-based software testing. However, the generation of the test scenarios is usually a manual and labor-intensive task. It is desired that test scenarios can be automatically(More)
Redundant test cases in newly generated test suites often remain undetected until execution and waste scarce project resources. In model-based testing, the testing process starts early on in the developmental phases and enables early fault detection. The redundancy in the test suites generated from models can be detected earlier as well and removed prior to(More)
1Department of Computer Science and Software Engineering, The University of Western Australia, Crawley, WA 6009, Australia 2Department of Electrical Engineering, The University of Auckland, Private Bag 92019, Auckland, New Zealand 3Department of Electrical and Electronics Engineering, Chung-Ang University, Huksuk-dong 221, Dongjak-gu, Seoul 156-756, South(More)
Software testing plays a crucial role in assuring software quality. One of the most important issues in software testing research is the generation of the test cases. For scenario-based software testing, the thin-threads, which are the usage scenarios in a software system from the end user's point of view, are frequently used to generate test cases.(More)