A functional organizational chart is a chart with very little top management shown, and workers shown are divided by departments below. This represents a top-down authority structure.
An example of a functional organizational chart is a chart with a president or CEO shown at the top of the chart. Then, the chart would be divided into numerous functional divisions of the business, such as a legal department, marketing, labor relations- and accounting. This type of organizational chart is usually used in larger companies, where managerial functions get spread to each department instead of the one at the top making all of the business decisions for the company.