A method for creating training systems including analyzing/mapping course requirements for evaluating required knowledge/skills according to mapped subjects and defining possible failure causes, wherein each failure cause represents knowledge/skill weakness relating a certain subject or general weakness, defining knowledge/skills target level correct/wrong answers in each subject as function of the number of users, preparing a question pool, wherein each question relates to a subject knowledge/skill and/or failure cause, preparing correct and wrong answers for each question, wherein each wrong answer is related to a specific sub-subject/subject and/or to a failure cause, defining an evaluation module for assessing user knowledge/skills level based on user's success in giving correct answers in comparison to predefined target levels and type of failure causes related to the user's wrong answers, and defining exercise module for selecting sequence of questions from predefined question set based on evaluations of user knowledge/skills level and detected failure causes.