MODSEL - SELECTIVITY MANAGEMENT IN ASYCUDA++ Ó UNCTAD - SITE (V1.15) 6.14 Value comparisons Value control works by matching and comparing. Successful matching relies on the accuracy of the description while value comparison requires the value of something measurable to compare with the  declared  value.  The  unit  value  can  be  based  on  the  weight  of  the  goods  or  any  other  unit  of measure. For  example,  it  can  be  based  on  the  number  of  pieces  e.g.  number  of  refrigerators  or  on  a measurement such as square metres e.g. fabric, or the alcoholic strength and liquid quantity that is declared on the declaration for an alcoholic drink. Note:  in  addition  to  gross  and  net  weights,  three  additional  data  elements  are available  for  gathering  information  on  measurements  or  units  of  quantity  on declared    goods.    These    are    set    up    from    within    MODCHQ    ‘Functions’, ‘Database Management’, ‘Customs Tariff’, Commodity Code’. See Section 10 of this Reference Document for further details. Having determined a standard unit of value measurement to suit the Commodity, manual values can be entered within the record. These values are unit values that will be directly comparable with the  calculated  unit  value  taken  from  the  declaration.  The  manual  minimum  and  maximum  values are most often used to indicate an “acceptable” value range, outside of which Customs may query the declaration or obtain further details. As  these  manual  values  are  accessed  by  the  system  through  selectivity  criteria  and  can  be manipulated by mathematical functions, a great deal of flexibility is possible in how they are used. Value Control Formula Building  a  Value  control  file  (described  in  the  previous  section)  requires  calculating  values  on  a wide  range  of  commodities.  In  most  cases  the  value  will  be  calculated  in  a  similar  manner. Examples are: - ·     The declaration item value divided by net weight; ·     The declaration item value divided by number of pieces (supplementary unit); or ·     The declaration item value divided by a cubic measurement. Independent of Commodity, the same data elements may apply. The Value control formula allows the user to build a library of formulae that can be used within the Valuation control file records. Selecting  the  menu  option  ‘Functions’,  ‘Value  control  management’,  ‘Value  control  formula’ opens the ‘Valuation control - Formula’ window. This  displays  a  table  of  Valuation  control  formula  records.  Records  are  arranged  in  two  columns that are headed ‘Code’ and ‘Description’. Controls  within  the  window  allow  the  creation  of  new  formulas  and  the  updating  and  deletion  of existing formulas. (Also the normal printing and search options.) Creating a Value Control Formula The following screen print displays a simple unit value formula.