This document discusses organizational structure and its key elements. It defines an organization as a social unit of people systematically structured to meet needs or pursue goals. An organizational structure determines relationships between functions and positions and divides roles, responsibilities, and authority. The key elements of organizational structure discussed are work specialization, departmentalization, chain of command, span of control, and centralization vs decentralization. Work specialization refers to dividing tasks into jobs, while departmentalization groups jobs in an area. The chain of command clarifies reporting relationships and span of control refers to the number of subordinates a manager can oversee.