Software engineers must make decisions that trade off competing goals (faster vs. cheaper, secure vs. usable, accurate vs. interpretable, etc.). Despite MSR’s proven techniques for exploring such goals, researchers still struggle with these trade-offs. Similarly, industrial practitioners deliver sub-optimal products since they lack the tools needed to explore these trade-offs.

To enable more research in this important area, we introduce MOOT, a repository of multi-objective optimization tasks taken from recent SE research papers. MOOT’s tasks cover software configuration, cloud tuning, project health, process modeling, hyperparameter optimization, and more. Located at github.com/timm/moot, MOOT’s current 120+ tasks are freely available under an MIT license (and we invite community contributions). As shown here, this this data enables dozens of novel research questions.