A hierarchical chart, also known as an organizational chart, is a visual representation of the structure of an organization. It shows the relationships between different levels of management and the roles and responsibilities of each individual. The term 'hierarchical chart' is often used interchangeably with the term 'tree, ' which is a four-letter word that can be used to describe this type of chart. A hierarchical chart is typically used to illustrate the chain of command within an organization, and it can be used to help visualize the roles and responsibilities of each individual.