The document defines management and different levels of management in an organization. It states that a manager is responsible for planning, monitoring work, and taking corrective actions. Management has three levels - senior/top management that makes long-term strategic decisions, middle management that carries out top management decisions and plans intermediate strategies, and low-level management like supervisors that ensure day-to-day operations are carried out and short-term plans are followed. The roles and responsibilities increase in scope from low-level to senior management.