4: In-process and final product is adequately identified as work instruction required, identification includes but not limit to lot#, production date, operator's information or any other specific data allows to trace product back to whole manufacture process3: In-process and final product is adequately identified which allows to trace product back to whole manufacture process , but individual identification information found missed2: In-process and final product is generally identified; but the identification can not ensure thorough traceability 1: In-process and final product is not well identified and can not be traced 0: No identification of in-process and final product