Henri Fayol developed fourteen principles of administrative management based on his experience as a general manager. The principles focused on topics such as division of work, authority and responsibility, discipline, unity of command, and initiative. The Behavioral Management School emerged in response to limitations of classical approaches, emphasizing human relations and social needs. This led to the Human Resources Management School advocating for employee participation and untapping their talent. The Management Science School applied quantitative techniques using computers and modeling to solve complex problems.