I would like to float the idea of removing SystemPhysical from the 6.3 release and
converting System to a physical model. System as a virtual model needlessly introduces
lookup tables and joins between the SystemPhysical tables. Also SystemPhysical is filled
with a lot of modeling and indexing concepts that would be best not to expose. Since
SystemPhysical is marked as non-visible, not documented for use (from within
transformations), and has all of its relevant information exposed through System anyway
the impact and potential workarounds for this removal are minimal. Let me know if there
are any concerns.