This graphic shows two boxes. The box on the left is labeled "Mixed Dictionary Metadata." It contains three tables: OBJ$, TAB$, and SOURCE$. The tables contain rows of two different colors. The box on the right is labeled "User Data." It contains tables labeled "employees" and "departments." It contains rows that are of one color only. The point of the graphic is to show that the Dictionary Metadata contains rows that describe user data and system data.