The number of management levels in an organization should be determined according to the size of the organization, the activity points and the width of management. As mentioned above, generally speaking, the management level of most organizations is often divided into three levels, namely, the upper level, the middle level and the grassroots level.
(1) For the upper level, its main task is to conduct unified command and comprehensive management of the whole organization from the overall interests of the organization, and formulate some major policies for organizational goals and achieving them.
(2) The main task of the middle level is to formulate sub-objectives, formulate and select implementation plans, steps and procedures, allocate resources by various departments, coordinate activities of subordinates, evaluate organizational activities, and formulate measures to correct deviations from objectives.
(3) The main task of grass-roots units is to coordinate the work of grass-roots employees and complete various plans and tasks in accordance with the prescribed plans and procedures. Si Long Institute of Management put forward a management hierarchy called "Anthony Structure". This structure divides operation management into three levels, namely, strategic planning level, tactical planning level and operation management level. This is equivalent to the division of the upper, middle and grass roots mentioned above. These three levels are shown in the portal map.