"The study of organizations includes a focus on optimizing organizational structure. According to management science, most human organizations fall roughly into four types: Committees or juries, Ecologies, Matrix organizations, Pyramids or hierarchies." [Organization. Wikipedia]
This hierarchical org chart template for the ConceptDraw PRO diagramming and vector drawing software is included in the 25 Typical Organizational Charts solution from the Management area of ConceptDraw Solution Park.