Description: unique and unambiguous combination of letters and/or numbers that distinguishes a product from products of a different manufacturing process; Name: Supplier batch number
Description: unique combination of numbers and letters that distinguishes a product from other products of a different fabrication process; Name: batch number from supplier
Description: variable quantity, which is not influenced by the control but is introduced into the control system from outside with the aim of making the final controlled variable follow it in a given relationship; Name: command variable