A Company Hierarchy Chart is a graphical representation of the structure of an organization. Its purpose is to depict the organization's reporting relationships and chains of command. Employee names and titles and job titles and positions are typically displayed in boxes or circles with lines connecting them with the other employees and departments. By looking at the Company Hierarchy Chart, people can quickly understand how the organization is designed, the number of levels, and where each employee fits into the organization. Historically, organizational charts were primarily used by Human Resources, business leaders, and new hires. H.R. is frequently in charge of updating the org chart with new hires and when employees change positions or leave the company.