Visualization of Contributions to Open-Source Projects

Abstract: We want to analyze visually, to what extend team members and external developers contribute to open-source projects. This gives a high-level impression about collaboration in that projects. We achieve this by recording provenance of the development process and use graph drawing on the resulting provenance graph. Our graph drawings show, which developers are jointly changed the same files -- and to what extent -- which we show at Germany's COVID-19 exposure notification app 'Corona-Warn-App'.