Processing a primary product into a secondary product

A method (100) for processing at least one primary product (A, B) into at least one secondary product (C), comprising:

• providing (S15) at least one distinguishable quantity of a primary product (A, B);
• providing (S11), for at least one provided distinguishable quantity of a primary product (A), a data structure (4′) associated with the distinguishable quantity, wherein the data structure (4′) comprises one data item (5) holding an object identifier indicative of the distinguishable quantity of the primary product (A), and one further data item (5) holding a report comprising at least one state value indicative of a processing state of a process performed during obtaining the primary product (A) of the distinguishable quantity indicated by the object identifier;
• processing (S19) the at least one primary product (A, B) into a distinguishable quantity of a secondary product (C) by a processing device (11);
• generating (S28) an unique object identifier indicative of the distinguishable quantity obtained by the processing during the processing step (S19);
• generating (S29) a new data structure (4) having at least two data items (5), wherein one data item (5) holds the generated object identifier indicative of the distinguishable quantity of the secondary product (C), and wherein one further data item (5) holds the object identifier indicative of the distinguishable quantity of the primary product (A);
• and
• providing (S52) the distinguishable quantity obtained by the processing during the processing step (S19).