MODCHQ - SET UP AND MAINTENANCE Ó UNCTAD – SITE (V1.15) 10.25 Any   new   codes   are   created   and   descriptions   updated   in   a   similar   manner   to   that   previously described. International  Trade  Terms,  as  the  name  suggests,  are  in  most  cases  strictly defined.  Codes  and  descriptions  are  to  the  standards  set  out  in  the   United Nations  Trade  Data  Elements  Directory.  It  is  strongly  recommendation  that countries adopt the international coding standard, regardless of their language choice for the national ASYCUDA++ system interface. Simplified Management Under this menu option, Currency rates and the Tariff can be easily updated. Exchange Rates Using this option it is easy to change the exchange rates for currencies. Fig. 10.19  MODCHQ: Functions: Database Management: Simplified Management: Rates of Exchange The currencies concerned and their rates and reference units can be updated on a single screen. The  system  then  updates  the  complete  table  in  one  step.  See  page    23  of  this  Section  for  an explanation of the purpose of the currency ‘Reference Unit’. Currency codes and conversion rates are input as a single list. On completing the list of required changes or updates, the list details are transferred into the currency control table by selecting  <F2> or 'Validate' from the ‘Local Menu’, 'Action'. Regular updating of a range of country currencies can be further facilitated by the saving of your list as a file, through the Local Menu, in EDI format. This means that the saved currency (EDI) file can be  retrieved  and  only  those  currencies  where  the  rates  have  altered  need  be  updated  for  further transfer to the currency control file. Customs Tariff Otherwise called ‘Simplified Update’. Using this option a range of commodity codes can be updated as a block, with taxation rates or the inclusion of Statistical units, Market values, National notes and Rules.