A platform for questionnaire delivery was internally developed at Novartis. Users were asked to select between pairs of compounds presented upon a predefined question. The front-end was developed using an intuitive ReactJS a web GUI that could be operated either via a computer or a touchscreen device. A screenshot of the deployed interface is shown on Figure . Special care was taken to ensure that the same pair was not presented to different users. Results were internally stored in a remote PostgreSQL database instance through a custom REST API developed with FastAPI b . The database was then peria reactjs.org b fastapi.tiangolo.com