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Empirical Software Engineering

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01-06-2008

Realizing quality improvement through test driven development: results and experiences of four industrial teams

Authors: Nachiappan Nagappan, E. Michael Maximilien, Thirumalesh Bhat, Laurie Williams

Published in: Empirical Software Engineering | Issue 3/2008

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Abstract

Test-driven development (TDD) is a software development practice that has been used sporadically for decades. With this practice, a software engineer cycles minute-by-minute between writing failing unit tests and writing implementation code to pass those tests. Test-driven development has recently re-emerged as a critical enabling practice of agile software development methodologies. However, little empirical evidence supports or refutes the utility of this practice in an industrial context. Case studies were conducted with three development teams at Microsoft and one at IBM that have adopted TDD. The results of the case studies indicate that the pre-release defect density of the four products decreased between 40% and 90% relative to similar projects that did not use the TDD practice. Subjectively, the teams experienced a 15–35% increase in initial development time after adopting TDD.

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Title: Realizing quality improvement through test driven development: results and experiences of four industrial teams
Authors: Nachiappan Nagappan
E. Michael Maximilien
Thirumalesh Bhat
Laurie Williams
Publication date: 01-06-2008
Publisher: Springer US
Published in: Empirical Software Engineering / Issue 3/2008
Print ISSN: 1382-3256
Electronic ISSN: 1573-7616
DOI: https://doi.org/10.1007/s10664-008-9062-z

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