This interdisciplinary symposium (e.g. human resources management, educational administration, data visualization, computer science) focuses on data-driven decision making (DDDM) by school administrators, from a perspective of educational success continuous improvement. In the literature, this decision-making is, for example, referred to as data driven decision making, data based decision making, data use and data informed decision making (e.g. Schildkamp, ​​2019; Young et al., 2018). .