A Platform for the Italian Bebras

The Bebras International Challenge on Informatics and Computational Thinking is a contest open to pupils of all school levels (from primary up to upper secondary) based on tasks rooted on core informatics concepts, yet independent of specific previous knowledge such as for instance that acquired during curricular activities. This paper describes the design choices, the architecture, and the main features of the web-based platform used to carry out the Italian Bebras contest. This platform includes functionalities needed by students, teachers, and Bebras staff during the execution of the challenge, tools to support the preparation of tasks and the training of students, instruments to evaluate the results and analyse data collected during the challenge. The platform is online since 2015 and it has managed the participation of around 25,000 teams and a significant amount of training sessions.