We developed a fault-localization technique that utilized correlation-based heuristics. The technique and tool was called Tarantula. Tarantula uses the pass/fail statuses of test cases and the events that occurred during execution of each test case to offer the developer recommendations of what may be the faults that are causing test-case failures. The intuition of the approach is to find correlations between execution events and test-case outcomes --- those events that correlate most highly with failure are suggested as places to begin investigation.
ISR has long been an internationally recognized leader in research into all aspects of open source software development. In this role, researchers at ISR along with colleagues throughout the U.S. helped to develop a new agenda that can help guide future research into open source software development.
To enable much of our research to enable program understanding, software quality, and maintenance, we utilize and develop analyses of program code. These analyses model the flows of information through the logic of programs and systems. With these analysis models enable automated techniques to assist development and maintenance tasks.