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Improving Software Quality Through Better Design and Testing



John Barkley, Mark Skall


Our results extending Kuhn's fault class hierarchy provide a justification for the focus of fault-based testing strategies on detecting particular faults and ignoring others. We develop a novel analytical technique that allows us to elegantly prove that the hierarchy applies to arbitrary expressions, not just those in disjunctive normal form. We also use the technique to extend the hierarchy to a wider range of fault classes. To demonstrate broad applicability, we compare faults in practical situations and analyze previous results. In particular, using our technique, we show that the basic meaningful impact strategy of Weyuker et al. tests for stuck-at faults, not just variable negation faults.
Proceedings Title
2nd National Software Summit, Software R&D Workshop
Conference Dates
May 10-14, 2004
Conference Location
Washinton DC, DC


Barkley, J. and Skall, M. (2004), Improving Software Quality Through Better Design and Testing, 2nd National Software Summit, Software R&D Workshop, Washinton DC, DC (Accessed April 17, 2024)
Created April 1, 2004, Updated February 19, 2017