19. The method according to claim 15 , wherein the step of linking the concept table to the description table comprises: generating a mapping table; linking the concept table to the mapping table; and linking the description table to the mapping table.
19. The method according to claim 15 , wherein the step of linking the concept table to the description table comprises: generating a mapping table; linking the concept table to the mapping table; and linking the description table to the mapping table. 20. The method according to claim 19 , further comprising: generating a description-external vocabulary mapping table; linking the mapping table to the description-external vocabulary mapping table; and linking the external vocabulary table to the description-external vocabulary mapping table.