Help clarifying proper use of production run quantity produced and rejected.

[Christian Carlow]

Production run declarations allow produced and rejected quantities to be 
declared but because of the various by-product scenarios that may exist, 
ambiguity is preventing me from determining how to properly use the 
fields.  For example, for Pierre's yeast-residue brewery example, the 
product is being produced but it isn't the product the production run 
was created to produce.  Therefore I'm not sure if the resulting 
yeast-residue should constitute quantity produced.  The same ambiguity 
applies to Jacopo's defective tortilla scenario.  Technically the 
tortilla isn't the same as the pizza the production run is meant to 
produce so declaring it as quantity rejected seems possibly correct.  
Are these fields supposed to be used only for tracking the goods 
quantities or are they meant to indicate quantities for non-production 
run goods as well?  This ambiguity is preventing me from implementing 
additional functionality required by the customer.