Class Relationship Diagram. This is which class holds what, not a heirachy inheritance diagram!
6/4/98
App
  |
  |
  +---OnneUserList---OnlineUser (Dynamic Data)
  |                      |
  |                      |
  |                      +---UIStack
  |                      |
  |                      |
  |                      +---SectorUI
  |                      |
  |                      |
  |                      +---StarDockUI
  |                      |
  |                      |
  |                      +---PlanetUI
  |                      |
  |                      |
  |                      +---Other UI Units.
  |
  +---Universe (Persistent Data)
         |
         +---Sectors
         |
         |
         +---Ships
         |
         |
         +---StarDocks
         |
         |
         +---Raiders
         |
         |
         +---PersistentUser