The figure represents the flat storage model, in which all the views in the hierarchy are based on the same table.

The table in the illustration is `AllPersons`, which contains the typeids and the attributes for the person, student, and employee types. The person attributes are also contained in the `Person_v`, `Student_v`, and `Employee_v` views. In addition, `Student_v` contains student attributes and `Employee_v` contains employee attributes.