Educational experts from around the world for decades have been trying to find the most impartial way to assess learning progress of students. Yearly ranking conducted by PISA, TIMSS, PIRLS, ICT are framing a unified system to compare the level of efficiency of educational systems in different countries. What stands behind the current changes in the most popular assessment systems and what should modern schools expect in the following decade - at the session we will try answer these questions. Join us to discuss some insights and new ideas and ask our experts an equally important question: how do changes in the assessment systems affect learning outcomes of the school students?