                   O
                   |
               +---+---+
               |       |
               O       O
               |       |
         +-----+-----+  +-----+
         |     |     |  |     |
         O     O     O  O     O

Xplain Data
ObjectExplorer (XOE)

       +-------+
       | ----- |
       | ----- |
       +-------+
           |
           |
       +-------+      +-------+
       | ----- |------| ----- |
       | ----- |      | ----- |
       +-------+      +-------+

Xplain Data
AdminTool (XAT)