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348 bytes removed ,  13:51, 27 March 2016
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=== Practical usage ===
 
=== Practical usage ===
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In practice however other indications are used by users. There is no best practice defined.
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* to indicate times, either a "*" or a "x" can be used;
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* to indicate times, either a "*" or a "x" is used;
* the generic formula is: multiplier * quantity size_unit for units
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* equivalent formulas are distinguished by a ";" or brackates "(,)"
* multiple formulas are distinguished by a ";"
   
** multiplier indicates how often a quantity unit is used, i.e. 6 (25 cl bottles). This is a number.
 
** multiplier indicates how often a quantity unit is used, i.e. 6 (25 cl bottles). This is a number.
 
** quantity the size of the units in size_units, i.e. 25 (size) cl (size_unit) bottles (units). This is a number.
 
** quantity the size of the units in size_units, i.e. 25 (size) cl (size_unit) bottles (units). This is a number.
 
** size_units is the unit for the size parameter, i.e. kg, ml or cl. This is an enumerated?
 
** size_units is the unit for the size parameter, i.e. kg, ml or cl. This is an enumerated?
 
** unit is the element the numbers and sizes refer to, i.e. pot, bottle, sack, etc.
 
** unit is the element the numbers and sizes refer to, i.e. pot, bottle, sack, etc.
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Some remarks:
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* not all 4 elements are always specified, eg 250 g means 1*250 g for the entire product
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* sometimes more than one quantity is specified, e.g. 250 g (5x50 g) might mean 1x250g for the entire product OR 5 50g pots
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* there are exceptions, such as multiple multipliers.
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* naturally users do not use this formal approach, but most quantities can be translated to this approach.
      
=== Test approach ===
 
=== Test approach ===
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