TableTypes TT /* holds description of each table type */
TableAttributes TA /* holds definition of each attribute */
Note that metadata tables TT and TA have the same format
   as  ordinary tables described by instances of TT and TA.
Therefore, metatables TT and TA can also be defined
   and stored in two rows of TT and eleven rows of TA.
StateModelRev05f.ppt - RJL rev. 050918  7