Organizational structure refers to how tasks are divided, grouped and coordinated within an organization. There are two fundamental processes in organizational structure - division of labor, which divides work into jobs, and coordination, which involves integrating work activities. An organizational structure has four main elements - span of control, which is the number of direct reports; centralization, which is the concentration of decision making; formalization, which are standardized rules and policies; and departmentalization, which is how employees are grouped. Common types of departmentalization include functional, divisional, matrix and team-based structures.