Abstract
To support successful quality managements of open source software (OSS) projects, this paper proposes to measure the balance of developers’ contributions to a source file as an entropy. Through an analysis of data collected from 10 popular OSS projects, the following trends are reported: a source file is more fault-prone as the developers’ contributions to the file are more imbalanced (lower entropy), and the proposed metric can be useful for predicting fault-prone programs.
Highlights
Open source software (OSS) products have become popular in the information technology-based business scene
In order to examine a difference in the faultproneness between multi-developer files and singledeveloper files, we compared the fault-proneness of the multi-developer source files with that of the single-developer ones
On RQ1, we compared the set of single-developer source files and that of multi-developer ones in terms of the fault-proneness
Summary
Open source software (OSS) products have become popular in the information technology-based business scene. Many commercial products or services are (partially) developed, maintained or operated by using OSS products such as Linux, Apache HTTP server, PostgreSQL, Firefox, Eclipse, OpenStack, etc. According to a survey on OSS products which was reported in June 20171, 60% of the survey respondents said their organizations’ use of OSS products increased in 2016. Another recent survey[2] reported that 96% of application software products leverage some of OSS-based components. OSS products play important roles in the successful development, maintenance and operation of many software products or services nowadays.
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