The project list is divided into public datasets I created, empirical studies I conducted, and tools I developed in cooperation with colleagues and students. Under methodological aspects, you’ll find an article about (ethical) issues in sampling software developers.


  • SOTorrent: Reconstructing and linking the version history of Stack Overflow posts




  • LivelySketches: Tool supporting the analog and digital lifecycle of sketches.
  • VisualCues: Classroom presentation tool for source code.
  • SketchLink: Tool for linking sketches to source code artifacts.
  • RegViz: Tool that visually augments regular expressions.