Faculty of organization and informatics in Croatia represents an interesting choice for vast number of students. In order to enroll students had to pass the entrance exam that consisted of several groups of questions covering different courses. Based on students' high school knowledge (and grades) as well as entrance test results (and some additional activities) the authors used to determine the list of students that were eligible to enroll. Later on (during their study) those students passed some exams as well. This paper describes the solution that was built in order to analyze the success of students from different schools and regions.