What make long term contributors: willingness and opportunity in OSS community
Proceedings of the 34th International Conference on Software Engineering
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Software engineering is still a relatively young field, struggling to develop consistent standards and methods across the domain. For a given project, developers can choose from dozens of models, tools, platforms, and languages for specification, design, implementation, and testing. The globalization of software engineering and the rise of Open Source further complicate the issues as firms now must collaborate and coordinate with other firms and individuals possessing a myriad of goals, norms, values, expertise, and preferences. This thesis uses four empirical studies to take a vertical examination of Open Source ecosystems and identify the way that foundations, firms, and individuals come together to create large scale software ecosystems and produce world class software despite their differing goals and values. First, I examine Open Source as a collaborative phenomenon between firms and non-profit foundations that support many communities and identify the ways in which non-profit foundations enable member firms to create value in the ecosystem. Next, an empirical study of direct collaboration between firms within the Eclipse system reveals that most firms operate relatively independently, but there is still heavy reliance on a single dominant player for core portions of the ecosystem. I then evaluate how the presence of commercial firms affects the attraction and retention of volunteer developers in an Open Source community. The final study examines how individual developers manage their dependencies in Open Source and extends the socio-technical congruence metric to address changing requirements and facilitate the metric as a tool for continual use. Finally, based on the findings of these studies, I close with a set of recommendations for stakeholders investing in Open Source.