5. The system of claim 1 , wherein the universal index server is configured upon adding additional variables to produce or require input of corresponding definitions that compare and distinguish the additional variables from the variables already appearing in the lexicon.
5. The system of claim 1 , wherein the universal index server is configured upon adding additional variables to produce or require input of corresponding definitions that compare and distinguish the additional variables from the variables already appearing in the lexicon. 6. The system of claim 5 , wherein the extent of any established equivalency is tracked across at least one of a universal index and an integrated system using the universal index, to produce a configuration and impact assessment map of one of field-values and database systems, containing a measure of one of direct equivalence and attendant equivalence.