Organization database is a data structure that stores organized information and is classified according to the organizational approach.
The following schema exhibits the Emakin organization units style. 
...
As depicted above each outer rectangle represents an organization unit in the organizational structure. Inside an organization unit, first rectangle is a position and the one inside is employee assigned to that position. Positions with the white icon beside, which are also placed on the top of each organization unit, are the manager positions of their organization units. The hierarchy between organization units and also positions are indicated with arrows going from one to many through vertical level.
...