- Investigate factors influencing conversion of first-time contributor into long-time contributors
- Measure the health of the project in actionable metrics
- Recognize contributors and committers
Input variables
- Effect of time-to-first-review
- Effect of PR lifetime
- Effect of belonging to ingroup
- Effect of work on component
- Effect of average repsonsiveness: Time between author action and action of a someone else
Output variables
- first-time contributor that came back for a second commit in the next 6 month
- Number of active contributors
- Active contributor to committer ratio
- Average time-to-first-review
- Average PR lifetime
- Distribution of above metrics over components
- top list
- awards
- new contributors
- How many PRs are merged without review?
- Can trends in the number of PRs and reviews be mapped to events feature freezes and releases?