Hi Katherine, thanks for reacting to our post! We are Mehran Rostamnia (PhD student @GSSI), me (Ricardo Caldas), Gianluca Filippone, and Prof. Patrizio Pelliccione.
We are reaching out to the community to study the use and development of behavior trees in robotics, especially in contexts where robots must change their behavior during execution. Since several tools have been developed in the context of ROS (e.g., BTCpp, py_trees), we figured the community might be interested.
Our survey is in-line with my colleague’s study from before (https://discourse.openrobotics.org/t/understanding-the-benefits-and-challenges-for-adopting-behavior-trees/43226l)