Application of the shipping procedure with clear responsibilities - personnel?- at each operation / activity, are the operators and their direct managers conforming that the work instructions are Clear, Visible, Quantified and Doable ?- were the users trained to apply the work instructions available for each operation / activity ? (Including their direct manager if not the trainer)- is the direct manager of the users, ensuring the strict and continuous EXECUTION of work instructions and are the work instructions at each operation / activity respected?